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Finding the Fourth Proportional to 78,513.59, 108,350.12 and 42,703.84

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Solution

The fourth proportional to 78,513.59, 108,350.12 and 42,703.84 is: 58,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,513.59 : 108,350.12 = 42,703.84 : x
  2. Step 2: Convert to fraction form
    78,513.59/108,350.12 = 42,703.84/x
  3. Step 3: Cross multiply
    78,513.59x = 108,350.12 × 42,703.84
  4. Step 4: Simplify right side
    78,513.59x = 4,626,966,024.35
  5. Step 5: Solve for x
    x = 4,626,966,024.35/78,513.59
  6. Step 6: Final answer
    x = 58,932.04

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