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Finding the Fourth Proportional to 124,234.60, 186,546.30 and 71,746.60

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Solution

The fourth proportional to 124,234.60, 186,546.30 and 71,746.60 is: 107,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,234.60 : 186,546.30 = 71,746.60 : x
  2. Step 2: Convert to fraction form
    124,234.60/186,546.30 = 71,746.60/x
  3. Step 3: Cross multiply
    124,234.60x = 186,546.30 × 71,746.60
  4. Step 4: Simplify right side
    124,234.60x = 13,384,062,767.58
  5. Step 5: Solve for x
    x = 13,384,062,767.58/124,234.60
  6. Step 6: Final answer
    x = 107,732.17

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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.