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Finding the Fourth Proportional to 122,446.80, 183,670.20 and 104,732.10

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Solution

The fourth proportional to 122,446.80, 183,670.20 and 104,732.10 is: 157,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,446.80 : 183,670.20 = 104,732.10 : x
  2. Step 2: Convert to fraction form
    122,446.80/183,670.20 = 104,732.10/x
  3. Step 3: Cross multiply
    122,446.80x = 183,670.20 × 104,732.10
  4. Step 4: Simplify right side
    122,446.80x = 19,236,165,753.42
  5. Step 5: Solve for x
    x = 19,236,165,753.42/122,446.80
  6. Step 6: Final answer
    x = 157,098.15

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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.