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Finding the Fourth Proportional to 89,142,725.20, 133,714,087.80 and 89,142,725.20

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Solution

The fourth proportional to 89,142,725.20, 133,714,087.80 and 89,142,725.20 is: 133,714,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,142,725.20 : 133,714,087.80 = 89,142,725.20 : x
  2. Step 2: Convert to fraction form
    89,142,725.20/133,714,087.80 = 89,142,725.20/x
  3. Step 3: Cross multiply
    89,142,725.20x = 133,714,087.80 × 89,142,725.20
  4. Step 4: Simplify right side
    89,142,725.20x = 11,919,638,184,124,072
  5. Step 5: Solve for x
    x = 11,919,638,184,124,072/89,142,725.20
  6. Step 6: Final answer
    x = 133,714,087.80

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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.