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Finding the Fourth Proportional to 69,346.13, 104,019.19 and 39,743.87

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Solution

The fourth proportional to 69,346.13, 104,019.19 and 39,743.87 is: 59,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,346.13 : 104,019.19 = 39,743.87 : x
  2. Step 2: Convert to fraction form
    69,346.13/104,019.19 = 39,743.87/x
  3. Step 3: Cross multiply
    69,346.13x = 104,019.19 × 39,743.87
  4. Step 4: Simplify right side
    69,346.13x = 4,134,124,545.41
  5. Step 5: Solve for x
    x = 4,134,124,545.41/69,346.13
  6. Step 6: Final answer
    x = 59,615.80

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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.