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Finding the Fourth Proportional to 125,347.14, 172,988.55 and 71,634.42

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Solution

The fourth proportional to 125,347.14, 172,988.55 and 71,634.42 is: 98,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,347.14 : 172,988.55 = 71,634.42 : x
  2. Step 2: Convert to fraction form
    125,347.14/172,988.55 = 71,634.42/x
  3. Step 3: Cross multiply
    125,347.14x = 172,988.55 × 71,634.42
  4. Step 4: Simplify right side
    125,347.14x = 12,391,934,445.89
  5. Step 5: Solve for x
    x = 12,391,934,445.89/125,347.14
  6. Step 6: Final answer
    x = 98,860.93

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