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Finding the Fourth Proportional to 261,462.80, 392,194.20 and 182,730.80

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Solution

The fourth proportional to 261,462.80, 392,194.20 and 182,730.80 is: 274,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,462.80 : 392,194.20 = 182,730.80 : x
  2. Step 2: Convert to fraction form
    261,462.80/392,194.20 = 182,730.80/x
  3. Step 3: Cross multiply
    261,462.80x = 392,194.20 × 182,730.80
  4. Step 4: Simplify right side
    261,462.80x = 71,665,957,960.39
  5. Step 5: Solve for x
    x = 71,665,957,960.39/261,462.80
  6. Step 6: Final answer
    x = 274,096.20

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Double scale
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Similar ratio
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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.