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Finding the Fourth Proportional to 73,617.64, 101,566.45 and 48,138.91

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Solution

The fourth proportional to 73,617.64, 101,566.45 and 48,138.91 is: 66,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,617.64 : 101,566.45 = 48,138.91 : x
  2. Step 2: Convert to fraction form
    73,617.64/101,566.45 = 48,138.91/x
  3. Step 3: Cross multiply
    73,617.64x = 101,566.45 × 48,138.91
  4. Step 4: Simplify right side
    73,617.64x = 4,889,298,195.57
  5. Step 5: Solve for x
    x = 4,889,298,195.57/73,617.64
  6. Step 6: Final answer
    x = 66,414.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.