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Finding the Fourth Proportional to 100,672.40, 151,123.80 and 59,142.80

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Solution

The fourth proportional to 100,672.40, 151,123.80 and 59,142.80 is: 88,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.40 : 151,123.80 = 59,142.80 : x
  2. Step 2: Convert to fraction form
    100,672.40/151,123.80 = 59,142.80/x
  3. Step 3: Cross multiply
    100,672.40x = 151,123.80 × 59,142.80
  4. Step 4: Simplify right side
    100,672.40x = 8,937,884,678.64
  5. Step 5: Solve for x
    x = 8,937,884,678.64/100,672.40
  6. Step 6: Final answer
    x = 88,781.88

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