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Finding the Fourth Proportional to 95,686.71, 143,560.80 and 29,139.72

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Solution

The fourth proportional to 95,686.71, 143,560.80 and 29,139.72 is: 43,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,686.71 : 143,560.80 = 29,139.72 : x
  2. Step 2: Convert to fraction form
    95,686.71/143,560.80 = 29,139.72/x
  3. Step 3: Cross multiply
    95,686.71x = 143,560.80 × 29,139.72
  4. Step 4: Simplify right side
    95,686.71x = 4,183,321,514.98
  5. Step 5: Solve for x
    x = 4,183,321,514.98/95,686.71
  6. Step 6: Final answer
    x = 43,718.94

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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.