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Finding the Fourth Proportional to 79,526.86, 109,747.30 and 45,535.87

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Solution

The fourth proportional to 79,526.86, 109,747.30 and 45,535.87 is: 62,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,526.86 : 109,747.30 = 45,535.87 : x
  2. Step 2: Convert to fraction form
    79,526.86/109,747.30 = 45,535.87/x
  3. Step 3: Cross multiply
    79,526.86x = 109,747.30 × 45,535.87
  4. Step 4: Simplify right side
    79,526.86x = 4,997,438,397.44
  5. Step 5: Solve for x
    x = 4,997,438,397.44/79,526.86
  6. Step 6: Final answer
    x = 62,839.63

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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.