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Finding the Fourth Proportional to 67,565.80, 93,265.86 and 40,709.80

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Solution

The fourth proportional to 67,565.80, 93,265.86 and 40,709.80 is: 56,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,565.80 : 93,265.86 = 40,709.80 : x
  2. Step 2: Convert to fraction form
    67,565.80/93,265.86 = 40,709.80/x
  3. Step 3: Cross multiply
    67,565.80x = 93,265.86 × 40,709.80
  4. Step 4: Simplify right side
    67,565.80x = 3,796,834,507.43
  5. Step 5: Solve for x
    x = 3,796,834,507.43/67,565.80
  6. Step 6: Final answer
    x = 56,194.62

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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.