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Finding the Fourth Proportional to 58,779.70, 88,169.55 and 31,131.70

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Solution

The fourth proportional to 58,779.70, 88,169.55 and 31,131.70 is: 46,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,779.70 : 88,169.55 = 31,131.70 : x
  2. Step 2: Convert to fraction form
    58,779.70/88,169.55 = 31,131.70/x
  3. Step 3: Cross multiply
    58,779.70x = 88,169.55 × 31,131.70
  4. Step 4: Simplify right side
    58,779.70x = 2,744,867,979.74
  5. Step 5: Solve for x
    x = 2,744,867,979.74/58,779.70
  6. Step 6: Final answer
    x = 46,697.55

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