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Finding the Fourth Proportional to 48,442.92, 72,451.88 and 43,143.48

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Solution

The fourth proportional to 48,442.92, 72,451.88 and 43,143.48 is: 64,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,442.92 : 72,451.88 = 43,143.48 : x
  2. Step 2: Convert to fraction form
    48,442.92/72,451.88 = 43,143.48/x
  3. Step 3: Cross multiply
    48,442.92x = 72,451.88 × 43,143.48
  4. Step 4: Simplify right side
    48,442.92x = 3,125,826,235.74
  5. Step 5: Solve for x
    x = 3,125,826,235.74/48,442.92
  6. Step 6: Final answer
    x = 64,525.97

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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.