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Finding the Fourth Proportional to 125,575.63, 173,294.43 and 68,990.65

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Solution

The fourth proportional to 125,575.63, 173,294.43 and 68,990.65 is: 95,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,575.63 : 173,294.43 = 68,990.65 : x
  2. Step 2: Convert to fraction form
    125,575.63/173,294.43 = 68,990.65/x
  3. Step 3: Cross multiply
    125,575.63x = 173,294.43 × 68,990.65
  4. Step 4: Simplify right side
    125,575.63x = 11,955,695,367.08
  5. Step 5: Solve for x
    x = 11,955,695,367.08/125,575.63
  6. Step 6: Final answer
    x = 95,207.13

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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.