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Finding the Fourth Proportional to 316,818.24, 437,209.18 and 173,583.72

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Solution

The fourth proportional to 316,818.24, 437,209.18 and 173,583.72 is: 239,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,818.24 : 437,209.18 = 173,583.72 : x
  2. Step 2: Convert to fraction form
    316,818.24/437,209.18 = 173,583.72/x
  3. Step 3: Cross multiply
    316,818.24x = 437,209.18 × 173,583.72
  4. Step 4: Simplify right side
    316,818.24x = 75,892,395,882.55
  5. Step 5: Solve for x
    x = 75,892,395,882.55/316,818.24
  6. Step 6: Final answer
    x = 239,545.54

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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.