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Finding the Fourth Proportional to 125,017.44, 172,489.95 and 71,282.85

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Solution

The fourth proportional to 125,017.44, 172,489.95 and 71,282.85 is: 98,350.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.44 : 172,489.95 = 71,282.85 : x
  2. Step 2: Convert to fraction form
    125,017.44/172,489.95 = 71,282.85/x
  3. Step 3: Cross multiply
    125,017.44x = 172,489.95 × 71,282.85
  4. Step 4: Simplify right side
    125,017.44x = 12,295,575,232.36
  5. Step 5: Solve for x
    x = 12,295,575,232.36/125,017.44
  6. Step 6: Final answer
    x = 98,350.88

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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.