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Finding the Fourth Proportional to 95,909.28, 143,478.40 and 82,901.28

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Solution

The fourth proportional to 95,909.28, 143,478.40 and 82,901.28 is: 124,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,909.28 : 143,478.40 = 82,901.28 : x
  2. Step 2: Convert to fraction form
    95,909.28/143,478.40 = 82,901.28/x
  3. Step 3: Cross multiply
    95,909.28x = 143,478.40 × 82,901.28
  4. Step 4: Simplify right side
    95,909.28x = 11,894,543,012.35
  5. Step 5: Solve for x
    x = 11,894,543,012.35/95,909.28
  6. Step 6: Final answer
    x = 124,018.69

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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.