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Finding the Fourth Proportional to 125,312.98, 172,915.97 and 71,601.47

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Solution

The fourth proportional to 125,312.98, 172,915.97 and 71,601.47 is: 98,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312.98 : 172,915.97 = 71,601.47 : x
  2. Step 2: Convert to fraction form
    125,312.98/172,915.97 = 71,601.47/x
  3. Step 3: Cross multiply
    125,312.98x = 172,915.97 × 71,601.47
  4. Step 4: Simplify right side
    125,312.98x = 12,381,037,638.48
  5. Step 5: Solve for x
    x = 12,381,037,638.48/125,312.98
  6. Step 6: Final answer
    x = 98,800.92

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