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Finding the Fourth Proportional to 95,360.90, 143,135.51 and 71,585.78

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Solution

The fourth proportional to 95,360.90, 143,135.51 and 71,585.78 is: 107,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,360.90 : 143,135.51 = 71,585.78 : x
  2. Step 2: Convert to fraction form
    95,360.90/143,135.51 = 71,585.78/x
  3. Step 3: Cross multiply
    95,360.90x = 143,135.51 × 71,585.78
  4. Step 4: Simplify right side
    95,360.90x = 10,246,466,055.44
  5. Step 5: Solve for x
    x = 10,246,466,055.44/95,360.90
  6. Step 6: Final answer
    x = 107,449.35

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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.