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Finding the Fourth Proportional to 95,319.70, 142,980.57 and 28,760.41

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Solution

The fourth proportional to 95,319.70, 142,980.57 and 28,760.41 is: 43,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,319.70 : 142,980.57 = 28,760.41 : x
  2. Step 2: Convert to fraction form
    95,319.70/142,980.57 = 28,760.41/x
  3. Step 3: Cross multiply
    95,319.70x = 142,980.57 × 28,760.41
  4. Step 4: Simplify right side
    95,319.70x = 4,112,179,815.23
  5. Step 5: Solve for x
    x = 4,112,179,815.23/95,319.70
  6. Step 6: Final answer
    x = 43,140.92

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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.