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Finding the Fourth Proportional to 73,957, 102,063.18 and 40,425.16

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Solution

The fourth proportional to 73,957, 102,063.18 and 40,425.16 is: 55,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,957 : 102,063.18 = 40,425.16 : x
  2. Step 2: Convert to fraction form
    73,957/102,063.18 = 40,425.16/x
  3. Step 3: Cross multiply
    73,957x = 102,063.18 × 40,425.16
  4. Step 4: Simplify right side
    73,957x = 4,125,920,381.61
  5. Step 5: Solve for x
    x = 4,125,920,381.61/73,957
  6. Step 6: Final answer
    x = 55,788.10

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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.