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Finding the Fourth Proportional to 99,715.52, 149,638.08 and 53,001.20

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Solution

The fourth proportional to 99,715.52, 149,638.08 and 53,001.20 is: 79,536.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.52 : 149,638.08 = 53,001.20 : x
  2. Step 2: Convert to fraction form
    99,715.52/149,638.08 = 53,001.20/x
  3. Step 3: Cross multiply
    99,715.52x = 149,638.08 × 53,001.20
  4. Step 4: Simplify right side
    99,715.52x = 7,930,997,805.70
  5. Step 5: Solve for x
    x = 7,930,997,805.70/99,715.52
  6. Step 6: Final answer
    x = 79,536.24

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