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Finding the Fourth Proportional to 124,659, 186,990.12 and 41,553

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Solution

The fourth proportional to 124,659, 186,990.12 and 41,553 is: 62,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,659 : 186,990.12 = 41,553 : x
  2. Step 2: Convert to fraction form
    124,659/186,990.12 = 41,553/x
  3. Step 3: Cross multiply
    124,659x = 186,990.12 × 41,553
  4. Step 4: Simplify right side
    124,659x = 7,770,000,456.36
  5. Step 5: Solve for x
    x = 7,770,000,456.36/124,659
  6. Step 6: Final answer
    x = 62,330.04

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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.