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Finding the Fourth Proportional to 217,593, 326,565 and 112,442.04

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Solution

The fourth proportional to 217,593, 326,565 and 112,442.04 is: 168,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,593 : 326,565 = 112,442.04 : x
  2. Step 2: Convert to fraction form
    217,593/326,565 = 112,442.04/x
  3. Step 3: Cross multiply
    217,593x = 326,565 × 112,442.04
  4. Step 4: Simplify right side
    217,593x = 36,719,634,792.60
  5. Step 5: Solve for x
    x = 36,719,634,792.60/217,593
  6. Step 6: Final answer
    x = 168,753.75

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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.