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Finding the Fourth Proportional to 234,861.59, 351,838.96 and 140,167.40

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Solution

The fourth proportional to 234,861.59, 351,838.96 and 140,167.40 is: 209,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,861.59 : 351,838.96 = 140,167.40 : x
  2. Step 2: Convert to fraction form
    234,861.59/351,838.96 = 140,167.40/x
  3. Step 3: Cross multiply
    234,861.59x = 351,838.96 × 140,167.40
  4. Step 4: Simplify right side
    234,861.59x = 49,316,350,132.29
  5. Step 5: Solve for x
    x = 49,316,350,132.29/234,861.59
  6. Step 6: Final answer
    x = 209,980.48

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1.5x scale

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.