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Finding the Fourth Proportional to 99,730.28, 137,627.48 and 54,407.93

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Solution

The fourth proportional to 99,730.28, 137,627.48 and 54,407.93 is: 75,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,730.28 : 137,627.48 = 54,407.93 : x
  2. Step 2: Convert to fraction form
    99,730.28/137,627.48 = 54,407.93/x
  3. Step 3: Cross multiply
    99,730.28x = 137,627.48 × 54,407.93
  4. Step 4: Simplify right side
    99,730.28x = 7,488,026,805.20
  5. Step 5: Solve for x
    x = 7,488,026,805.20/99,730.28
  6. Step 6: Final answer
    x = 75,082.78

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