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Finding the Fourth Proportional to 78,641.04, 108,523.88 and 42,830.96

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Solution

The fourth proportional to 78,641.04, 108,523.88 and 42,830.96 is: 59,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,641.04 : 108,523.88 = 42,830.96 : x
  2. Step 2: Convert to fraction form
    78,641.04/108,523.88 = 42,830.96/x
  3. Step 3: Cross multiply
    78,641.04x = 108,523.88 × 42,830.96
  4. Step 4: Simplify right side
    78,641.04x = 4,648,181,963.32
  5. Step 5: Solve for x
    x = 4,648,181,963.32/78,641.04
  6. Step 6: Final answer
    x = 59,106.31

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