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Finding the Fourth Proportional to 87,035,999.40, 130,553,999.10 and 87,035,999.40

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Solution

The fourth proportional to 87,035,999.40, 130,553,999.10 and 87,035,999.40 is: 130,553,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,035,999.40 : 130,553,999.10 = 87,035,999.40 : x
  2. Step 2: Convert to fraction form
    87,035,999.40/130,553,999.10 = 87,035,999.40/x
  3. Step 3: Cross multiply
    87,035,999.40x = 130,553,999.10 × 87,035,999.40
  4. Step 4: Simplify right side
    87,035,999.40x = 11,362,897,787,335,200
  5. Step 5: Solve for x
    x = 11,362,897,787,335,200/87,035,999.40
  6. Step 6: Final answer
    x = 130,553,999.10

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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.