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Finding the Fourth Proportional to 124,648.62, 187,005.12 and 35,909.10

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Solution

The fourth proportional to 124,648.62, 187,005.12 and 35,909.10 is: 53,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,648.62 : 187,005.12 = 35,909.10 : x
  2. Step 2: Convert to fraction form
    124,648.62/187,005.12 = 35,909.10/x
  3. Step 3: Cross multiply
    124,648.62x = 187,005.12 × 35,909.10
  4. Step 4: Simplify right side
    124,648.62x = 6,715,185,554.59
  5. Step 5: Solve for x
    x = 6,715,185,554.59/124,648.62
  6. Step 6: Final answer
    x = 53,872.92

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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.