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Finding the Fourth Proportional to 215,732.70, 297,686.52 and 125,069.76

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Solution

The fourth proportional to 215,732.70, 297,686.52 and 125,069.76 is: 172,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,732.70 : 297,686.52 = 125,069.76 : x
  2. Step 2: Convert to fraction form
    215,732.70/297,686.52 = 125,069.76/x
  3. Step 3: Cross multiply
    215,732.70x = 297,686.52 × 125,069.76
  4. Step 4: Simplify right side
    215,732.70x = 37,231,581,611.64
  5. Step 5: Solve for x
    x = 37,231,581,611.64/215,732.70
  6. Step 6: Final answer
    x = 172,582.00

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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.