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Finding the Fourth Proportional to 98,391.53, 135,779.18 and 55,370.85

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Solution

The fourth proportional to 98,391.53, 135,779.18 and 55,370.85 is: 76,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,391.53 : 135,779.18 = 55,370.85 : x
  2. Step 2: Convert to fraction form
    98,391.53/135,779.18 = 55,370.85/x
  3. Step 3: Cross multiply
    98,391.53x = 135,779.18 × 55,370.85
  4. Step 4: Simplify right side
    98,391.53x = 7,518,208,332.05
  5. Step 5: Solve for x
    x = 7,518,208,332.05/98,391.53
  6. Step 6: Final answer
    x = 76,411.14

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