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Finding the Fourth Proportional to 124,414.10, 186,621.15 and 45,536.30

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Solution

The fourth proportional to 124,414.10, 186,621.15 and 45,536.30 is: 68,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,414.10 : 186,621.15 = 45,536.30 : x
  2. Step 2: Convert to fraction form
    124,414.10/186,621.15 = 45,536.30/x
  3. Step 3: Cross multiply
    124,414.10x = 186,621.15 × 45,536.30
  4. Step 4: Simplify right side
    124,414.10x = 8,498,036,672.75
  5. Step 5: Solve for x
    x = 8,498,036,672.75/124,414.10
  6. Step 6: Final answer
    x = 68,304.45

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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.