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Finding the Fourth Proportional to 124,427.10, 186,640.65 and 45,543.90

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Solution

The fourth proportional to 124,427.10, 186,640.65 and 45,543.90 is: 68,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,427.10 : 186,640.65 = 45,543.90 : x
  2. Step 2: Convert to fraction form
    124,427.10/186,640.65 = 45,543.90/x
  3. Step 3: Cross multiply
    124,427.10x = 186,640.65 × 45,543.90
  4. Step 4: Simplify right side
    124,427.10x = 8,500,343,099.54
  5. Step 5: Solve for x
    x = 8,500,343,099.54/124,427.10
  6. Step 6: Final answer
    x = 68,315.85

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