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Finding the Fourth Proportional to 217,592.64, 326,126.52 and 112,354.20

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Solution

The fourth proportional to 217,592.64, 326,126.52 and 112,354.20 is: 168,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,592.64 : 326,126.52 = 112,354.20 : x
  2. Step 2: Convert to fraction form
    217,592.64/326,126.52 = 112,354.20/x
  3. Step 3: Cross multiply
    217,592.64x = 326,126.52 × 112,354.20
  4. Step 4: Simplify right side
    217,592.64x = 36,641,684,253.38
  5. Step 5: Solve for x
    x = 36,641,684,253.38/217,592.64
  6. Step 6: Final answer
    x = 168,395.79

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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.