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Finding the Fourth Proportional to 140,370.57, 193,731.14 and 89,367.01

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Solution

The fourth proportional to 140,370.57, 193,731.14 and 89,367.01 is: 123,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,370.57 : 193,731.14 = 89,367.01 : x
  2. Step 2: Convert to fraction form
    140,370.57/193,731.14 = 89,367.01/x
  3. Step 3: Cross multiply
    140,370.57x = 193,731.14 × 89,367.01
  4. Step 4: Simplify right side
    140,370.57x = 17,313,172,464.78
  5. Step 5: Solve for x
    x = 17,313,172,464.78/140,370.57
  6. Step 6: Final answer
    x = 123,339.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.