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Finding the Fourth Proportional to 95,047.12, 142,585.08 and 68,948.80

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Solution

The fourth proportional to 95,047.12, 142,585.08 and 68,948.80 is: 103,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,047.12 : 142,585.08 = 68,948.80 : x
  2. Step 2: Convert to fraction form
    95,047.12/142,585.08 = 68,948.80/x
  3. Step 3: Cross multiply
    95,047.12x = 142,585.08 × 68,948.80
  4. Step 4: Simplify right side
    95,047.12x = 9,831,070,163.90
  5. Step 5: Solve for x
    x = 9,831,070,163.90/95,047.12
  6. Step 6: Final answer
    x = 103,433.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.