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Finding the Fourth Proportional to 79,572.68, 109,808.10 and 43,762.69

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Solution

The fourth proportional to 79,572.68, 109,808.10 and 43,762.69 is: 60,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,572.68 : 109,808.10 = 43,762.69 : x
  2. Step 2: Convert to fraction form
    79,572.68/109,808.10 = 43,762.69/x
  3. Step 3: Cross multiply
    79,572.68x = 109,808.10 × 43,762.69
  4. Step 4: Simplify right side
    79,572.68x = 4,805,497,565.27
  5. Step 5: Solve for x
    x = 4,805,497,565.27/79,572.68
  6. Step 6: Final answer
    x = 60,391.30

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1.5x scale

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.