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Finding the Fourth Proportional to 125,035.44, 172,530.36 and 75,951.57

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Solution

The fourth proportional to 125,035.44, 172,530.36 and 75,951.57 is: 104,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,035.44 : 172,530.36 = 75,951.57 : x
  2. Step 2: Convert to fraction form
    125,035.44/172,530.36 = 75,951.57/x
  3. Step 3: Cross multiply
    125,035.44x = 172,530.36 × 75,951.57
  4. Step 4: Simplify right side
    125,035.44x = 13,103,951,714.67
  5. Step 5: Solve for x
    x = 13,103,951,714.67/125,035.44
  6. Step 6: Final answer
    x = 104,801.90

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1.5x scale

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.