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Finding the Fourth Proportional to 171,002.40, 256,503.60 and 151,319.40

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Solution

The fourth proportional to 171,002.40, 256,503.60 and 151,319.40 is: 226,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,002.40 : 256,503.60 = 151,319.40 : x
  2. Step 2: Convert to fraction form
    171,002.40/256,503.60 = 151,319.40/x
  3. Step 3: Cross multiply
    171,002.40x = 256,503.60 × 151,319.40
  4. Step 4: Simplify right side
    171,002.40x = 38,813,970,849.84
  5. Step 5: Solve for x
    x = 38,813,970,849.84/171,002.40
  6. Step 6: Final answer
    x = 226,979.10

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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.