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Finding the Fourth Proportional to 218,822.60, 328,233.90 and 130,030.40

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Solution

The fourth proportional to 218,822.60, 328,233.90 and 130,030.40 is: 195,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.60 : 328,233.90 = 130,030.40 : x
  2. Step 2: Convert to fraction form
    218,822.60/328,233.90 = 130,030.40/x
  3. Step 3: Cross multiply
    218,822.60x = 328,233.90 × 130,030.40
  4. Step 4: Simplify right side
    218,822.60x = 42,680,385,310.56
  5. Step 5: Solve for x
    x = 42,680,385,310.56/218,822.60
  6. Step 6: Final answer
    x = 195,045.60

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