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Finding the Fourth Proportional to 68,931.40, 103,397.10 and 62,807.80

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Solution

The fourth proportional to 68,931.40, 103,397.10 and 62,807.80 is: 94,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,931.40 : 103,397.10 = 62,807.80 : x
  2. Step 2: Convert to fraction form
    68,931.40/103,397.10 = 62,807.80/x
  3. Step 3: Cross multiply
    68,931.40x = 103,397.10 × 62,807.80
  4. Step 4: Simplify right side
    68,931.40x = 6,494,144,377.38
  5. Step 5: Solve for x
    x = 6,494,144,377.38/68,931.40
  6. Step 6: Final answer
    x = 94,211.70

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