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Finding the Fourth Proportional to 87,101,688,001.20, 130,652,532,001.80 and 87,101,688,001.20

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Solution

The fourth proportional to 87,101,688,001.20, 130,652,532,001.80 and 87,101,688,001.20 is: 130,652,532,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,101,688,001.20 : 130,652,532,001.80 = 87,101,688,001.20 : x
  2. Step 2: Convert to fraction form
    87,101,688,001.20/130,652,532,001.80 = 87,101,688,001.20/x
  3. Step 3: Cross multiply
    87,101,688,001.20x = 130,652,532,001.80 × 87,101,688,001.20
  4. Step 4: Simplify right side
    87,101,688,001.20x = 11,380,056,078,987,581,980,672
  5. Step 5: Solve for x
    x = 11,380,056,078,987,581,980,672/87,101,688,001.20
  6. Step 6: Final answer
    x = 130,652,532,001.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.