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Finding the Fourth Proportional to 95,870.40, 143,805.60 and 67,876.80

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Solution

The fourth proportional to 95,870.40, 143,805.60 and 67,876.80 is: 101,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,870.40 : 143,805.60 = 67,876.80 : x
  2. Step 2: Convert to fraction form
    95,870.40/143,805.60 = 67,876.80/x
  3. Step 3: Cross multiply
    95,870.40x = 143,805.60 × 67,876.80
  4. Step 4: Simplify right side
    95,870.40x = 9,761,063,950.08
  5. Step 5: Solve for x
    x = 9,761,063,950.08/95,870.40
  6. Step 6: Final answer
    x = 101,815.20

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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.