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Finding the Fourth Proportional to 95,219.71, 142,800.80 and 28,642.16

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Solution

The fourth proportional to 95,219.71, 142,800.80 and 28,642.16 is: 42,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,219.71 : 142,800.80 = 28,642.16 : x
  2. Step 2: Convert to fraction form
    95,219.71/142,800.80 = 28,642.16/x
  3. Step 3: Cross multiply
    95,219.71x = 142,800.80 × 28,642.16
  4. Step 4: Simplify right side
    95,219.71x = 4,090,123,361.73
  5. Step 5: Solve for x
    x = 4,090,123,361.73/95,219.71
  6. Step 6: Final answer
    x = 42,954.59

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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.