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Finding the Fourth Proportional to 74,465.60, 102,759.36 and 40,931.52

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Solution

The fourth proportional to 74,465.60, 102,759.36 and 40,931.52 is: 56,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.60 : 102,759.36 = 40,931.52 : x
  2. Step 2: Convert to fraction form
    74,465.60/102,759.36 = 40,931.52/x
  3. Step 3: Cross multiply
    74,465.60x = 102,759.36 × 40,931.52
  4. Step 4: Simplify right side
    74,465.60x = 4,206,096,799.03
  5. Step 5: Solve for x
    x = 4,206,096,799.03/74,465.60
  6. Step 6: Final answer
    x = 56,483.76

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