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Finding the Fourth Proportional to 74,887,712.10, 112,331,568.15 and 74,887,712.10

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Solution

The fourth proportional to 74,887,712.10, 112,331,568.15 and 74,887,712.10 is: 112,331,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,712.10 : 112,331,568.15 = 74,887,712.10 : x
  2. Step 2: Convert to fraction form
    74,887,712.10/112,331,568.15 = 74,887,712.10/x
  3. Step 3: Cross multiply
    74,887,712.10x = 112,331,568.15 × 74,887,712.10
  4. Step 4: Simplify right side
    74,887,712.10x = 8,412,254,135,358,729
  5. Step 5: Solve for x
    x = 8,412,254,135,358,729/74,887,712.10
  6. Step 6: Final answer
    x = 112,331,568.15

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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.