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Finding the Fourth Proportional to 48,158.76, 72,132.30 and 39,743.40

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Solution

The fourth proportional to 48,158.76, 72,132.30 and 39,743.40 is: 59,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,158.76 : 72,132.30 = 39,743.40 : x
  2. Step 2: Convert to fraction form
    48,158.76/72,132.30 = 39,743.40/x
  3. Step 3: Cross multiply
    48,158.76x = 72,132.30 × 39,743.40
  4. Step 4: Simplify right side
    48,158.76x = 2,866,782,851.82
  5. Step 5: Solve for x
    x = 2,866,782,851.82/48,158.76
  6. Step 6: Final answer
    x = 59,527.75

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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.