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Finding the Fourth Proportional to 251,775.60, 347,371.92 and 142,861.92

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Solution

The fourth proportional to 251,775.60, 347,371.92 and 142,861.92 is: 197,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,775.60 : 347,371.92 = 142,861.92 : x
  2. Step 2: Convert to fraction form
    251,775.60/347,371.92 = 142,861.92/x
  3. Step 3: Cross multiply
    251,775.60x = 347,371.92 × 142,861.92
  4. Step 4: Simplify right side
    251,775.60x = 49,626,219,445.29
  5. Step 5: Solve for x
    x = 49,626,219,445.29/251,775.60
  6. Step 6: Final answer
    x = 197,104.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.