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Finding the Fourth Proportional to 95,172.76, 142,780.02 and 28,618.84

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Solution

The fourth proportional to 95,172.76, 142,780.02 and 28,618.84 is: 42,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,172.76 : 142,780.02 = 28,618.84 : x
  2. Step 2: Convert to fraction form
    95,172.76/142,780.02 = 28,618.84/x
  3. Step 3: Cross multiply
    95,172.76x = 142,780.02 × 28,618.84
  4. Step 4: Simplify right side
    95,172.76x = 4,086,198,547.58
  5. Step 5: Solve for x
    x = 4,086,198,547.58/95,172.76
  6. Step 6: Final answer
    x = 42,934.54

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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.