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Finding the Fourth Proportional to 125,051.88, 172,572.10 and 68,468.52

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Solution

The fourth proportional to 125,051.88, 172,572.10 and 68,468.52 is: 94,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,051.88 : 172,572.10 = 68,468.52 : x
  2. Step 2: Convert to fraction form
    125,051.88/172,572.10 = 68,468.52/x
  3. Step 3: Cross multiply
    125,051.88x = 172,572.10 × 68,468.52
  4. Step 4: Simplify right side
    125,051.88x = 11,815,756,280.29
  5. Step 5: Solve for x
    x = 11,815,756,280.29/125,051.88
  6. Step 6: Final answer
    x = 94,486.83

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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.