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Finding the Fourth Proportional to 125,307.66, 187,967.85 and 36,567.90

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Solution

The fourth proportional to 125,307.66, 187,967.85 and 36,567.90 is: 54,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,307.66 : 187,967.85 = 36,567.90 : x
  2. Step 2: Convert to fraction form
    125,307.66/187,967.85 = 36,567.90/x
  3. Step 3: Cross multiply
    125,307.66x = 187,967.85 × 36,567.90
  4. Step 4: Simplify right side
    125,307.66x = 6,873,589,542.02
  5. Step 5: Solve for x
    x = 6,873,589,542.02/125,307.66
  6. Step 6: Final answer
    x = 54,853.71

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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.