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Finding the Fourth Proportional to 79,535, 109,755.96 and 45,542.36

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Solution

The fourth proportional to 79,535, 109,755.96 and 45,542.36 is: 62,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,535 : 109,755.96 = 45,542.36 : x
  2. Step 2: Convert to fraction form
    79,535/109,755.96 = 45,542.36/x
  3. Step 3: Cross multiply
    79,535x = 109,755.96 × 45,542.36
  4. Step 4: Simplify right side
    79,535x = 4,998,545,442.47
  5. Step 5: Solve for x
    x = 4,998,545,442.47/79,535
  6. Step 6: Final answer
    x = 62,847.12

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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.