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Finding the Fourth Proportional to 440,402.20, 660,473.70 and 124,886.68

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Solution

The fourth proportional to 440,402.20, 660,473.70 and 124,886.68 is: 187,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,402.20 : 660,473.70 = 124,886.68 : x
  2. Step 2: Convert to fraction form
    440,402.20/660,473.70 = 124,886.68/x
  3. Step 3: Cross multiply
    440,402.20x = 660,473.70 × 124,886.68
  4. Step 4: Simplify right side
    440,402.20x = 82,484,367,620.32
  5. Step 5: Solve for x
    x = 82,484,367,620.32/440,402.20
  6. Step 6: Final answer
    x = 187,293.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.