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Finding the Fourth Proportional to 95,886.28, 143,443.98 and 82,878.28

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Solution

The fourth proportional to 95,886.28, 143,443.98 and 82,878.28 is: 123,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,886.28 : 143,443.98 = 82,878.28 : x
  2. Step 2: Convert to fraction form
    95,886.28/143,443.98 = 82,878.28/x
  3. Step 3: Cross multiply
    95,886.28x = 143,443.98 × 82,878.28
  4. Step 4: Simplify right side
    95,886.28x = 11,888,390,338.75
  5. Step 5: Solve for x
    x = 11,888,390,338.75/95,886.28
  6. Step 6: Final answer
    x = 123,984.27

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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.