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Finding the Fourth Proportional to 73,291.86, 101,125.13 and 43,074.81

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Solution

The fourth proportional to 73,291.86, 101,125.13 and 43,074.81 is: 59,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,291.86 : 101,125.13 = 43,074.81 : x
  2. Step 2: Convert to fraction form
    73,291.86/101,125.13 = 43,074.81/x
  3. Step 3: Cross multiply
    73,291.86x = 101,125.13 × 43,074.81
  4. Step 4: Simplify right side
    73,291.86x = 4,355,945,545.60
  5. Step 5: Solve for x
    x = 4,355,945,545.60/73,291.86
  6. Step 6: Final answer
    x = 59,432.87

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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.