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Finding the Fourth Proportional to 317,065.19, 437,549.85 and 173,822.15

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Solution

The fourth proportional to 317,065.19, 437,549.85 and 173,822.15 is: 239,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,065.19 : 437,549.85 = 173,822.15 : x
  2. Step 2: Convert to fraction form
    317,065.19/437,549.85 = 173,822.15/x
  3. Step 3: Cross multiply
    317,065.19x = 437,549.85 × 173,822.15
  4. Step 4: Simplify right side
    317,065.19x = 76,055,856,753.05
  5. Step 5: Solve for x
    x = 76,055,856,753.05/317,065.19
  6. Step 6: Final answer
    x = 239,874.51

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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.