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Finding the Fourth Proportional to 124,498.34, 186,747.39 and 45,618.71

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Solution

The fourth proportional to 124,498.34, 186,747.39 and 45,618.71 is: 68,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,498.34 : 186,747.39 = 45,618.71 : x
  2. Step 2: Convert to fraction form
    124,498.34/186,747.39 = 45,618.71/x
  3. Step 3: Cross multiply
    124,498.34x = 186,747.39 × 45,618.71
  4. Step 4: Simplify right side
    124,498.34x = 8,519,175,027.67
  5. Step 5: Solve for x
    x = 8,519,175,027.67/124,498.34
  6. Step 6: Final answer
    x = 68,428.02

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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.