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Finding the Fourth Proportional to 61,269.52, 91,489.25 and 48,647.92

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Solution

The fourth proportional to 61,269.52, 91,489.25 and 48,647.92 is: 72,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,269.52 : 91,489.25 = 48,647.92 : x
  2. Step 2: Convert to fraction form
    61,269.52/91,489.25 = 48,647.92/x
  3. Step 3: Cross multiply
    61,269.52x = 91,489.25 × 48,647.92
  4. Step 4: Simplify right side
    61,269.52x = 4,450,761,714.86
  5. Step 5: Solve for x
    x = 4,450,761,714.86/61,269.52
  6. Step 6: Final answer
    x = 72,642.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.