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Finding the Fourth Proportional to 73,937.52, 102,035.16 and 40,404.72

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Solution

The fourth proportional to 73,937.52, 102,035.16 and 40,404.72 is: 55,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,937.52 : 102,035.16 = 40,404.72 : x
  2. Step 2: Convert to fraction form
    73,937.52/102,035.16 = 40,404.72/x
  3. Step 3: Cross multiply
    73,937.52x = 102,035.16 × 40,404.72
  4. Step 4: Simplify right side
    73,937.52x = 4,122,702,069.96
  5. Step 5: Solve for x
    x = 4,122,702,069.96/73,937.52
  6. Step 6: Final answer
    x = 55,759.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.