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Finding the Fourth Proportional to 338,065.20, 506,360.90 and 169,291.17

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Solution

The fourth proportional to 338,065.20, 506,360.90 and 169,291.17 is: 253,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,065.20 : 506,360.90 = 169,291.17 : x
  2. Step 2: Convert to fraction form
    338,065.20/506,360.90 = 169,291.17/x
  3. Step 3: Cross multiply
    338,065.20x = 506,360.90 × 169,291.17
  4. Step 4: Simplify right side
    338,065.20x = 85,722,429,626.48
  5. Step 5: Solve for x
    x = 85,722,429,626.48/338,065.20
  6. Step 6: Final answer
    x = 253,567.74

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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.