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Finding the Fourth Proportional to 342,174.80, 513,213.60 and 117,545.60

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Solution

The fourth proportional to 342,174.80, 513,213.60 and 117,545.60 is: 176,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,174.80 : 513,213.60 = 117,545.60 : x
  2. Step 2: Convert to fraction form
    342,174.80/513,213.60 = 117,545.60/x
  3. Step 3: Cross multiply
    342,174.80x = 513,213.60 × 117,545.60
  4. Step 4: Simplify right side
    342,174.80x = 60,326,000,540.16
  5. Step 5: Solve for x
    x = 60,326,000,540.16/342,174.80
  6. Step 6: Final answer
    x = 176,301.70

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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.