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Finding the Fourth Proportional to 60,304.40, 90,382.20 and 43,721.36

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Solution

The fourth proportional to 60,304.40, 90,382.20 and 43,721.36 is: 65,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,304.40 : 90,382.20 = 43,721.36 : x
  2. Step 2: Convert to fraction form
    60,304.40/90,382.20 = 43,721.36/x
  3. Step 3: Cross multiply
    60,304.40x = 90,382.20 × 43,721.36
  4. Step 4: Simplify right side
    60,304.40x = 3,951,632,703.79
  5. Step 5: Solve for x
    x = 3,951,632,703.79/60,304.40
  6. Step 6: Final answer
    x = 65,528.10

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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.