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Finding the Fourth Proportional to 227,172.60, 313,576.92 and 155,788.92

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Solution

The fourth proportional to 227,172.60, 313,576.92 and 155,788.92 is: 215,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,172.60 : 313,576.92 = 155,788.92 : x
  2. Step 2: Convert to fraction form
    227,172.60/313,576.92 = 155,788.92/x
  3. Step 3: Cross multiply
    227,172.60x = 313,576.92 × 155,788.92
  4. Step 4: Simplify right side
    227,172.60x = 48,851,809,703.73
  5. Step 5: Solve for x
    x = 48,851,809,703.73/227,172.60
  6. Step 6: Final answer
    x = 215,042.70

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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.