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Finding the Fourth Proportional to 61,658.64, 92,531.52 and 55,710

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Solution

The fourth proportional to 61,658.64, 92,531.52 and 55,710 is: 83,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,658.64 : 92,531.52 = 55,710 : x
  2. Step 2: Convert to fraction form
    61,658.64/92,531.52 = 55,710/x
  3. Step 3: Cross multiply
    61,658.64x = 92,531.52 × 55,710
  4. Step 4: Simplify right side
    61,658.64x = 5,154,930,979.20
  5. Step 5: Solve for x
    x = 5,154,930,979.20/61,658.64
  6. Step 6: Final answer
    x = 83,604.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.