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Finding the Fourth Proportional to 73,125.96, 109,732.62 and 67,177.32

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Solution

The fourth proportional to 73,125.96, 109,732.62 and 67,177.32 is: 100,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,125.96 : 109,732.62 = 67,177.32 : x
  2. Step 2: Convert to fraction form
    73,125.96/109,732.62 = 67,177.32/x
  3. Step 3: Cross multiply
    73,125.96x = 109,732.62 × 67,177.32
  4. Step 4: Simplify right side
    73,125.96x = 7,371,543,328.18
  5. Step 5: Solve for x
    x = 7,371,543,328.18/73,125.96
  6. Step 6: Final answer
    x = 100,806.11

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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.