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Finding the Fourth Proportional to 410,112.60, 615,053.70 and 129,715.80

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Solution

The fourth proportional to 410,112.60, 615,053.70 and 129,715.80 is: 194,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,112.60 : 615,053.70 = 129,715.80 : x
  2. Step 2: Convert to fraction form
    410,112.60/615,053.70 = 129,715.80/x
  3. Step 3: Cross multiply
    410,112.60x = 615,053.70 × 129,715.80
  4. Step 4: Simplify right side
    410,112.60x = 79,782,182,738.46
  5. Step 5: Solve for x
    x = 79,782,182,738.46/410,112.60
  6. Step 6: Final answer
    x = 194,537.26

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