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Finding the Fourth Proportional to 107,671.72, 148,431.19 and 71,312.25

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Solution

The fourth proportional to 107,671.72, 148,431.19 and 71,312.25 is: 98,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,671.72 : 148,431.19 = 71,312.25 : x
  2. Step 2: Convert to fraction form
    107,671.72/148,431.19 = 71,312.25/x
  3. Step 3: Cross multiply
    107,671.72x = 148,431.19 × 71,312.25
  4. Step 4: Simplify right side
    107,671.72x = 10,584,962,129.08
  5. Step 5: Solve for x
    x = 10,584,962,129.08/107,671.72
  6. Step 6: Final answer
    x = 98,307.73

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