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Finding the Fourth Proportional to 140,460.52, 193,937.04 and 86,819.08

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Solution

The fourth proportional to 140,460.52, 193,937.04 and 86,819.08 is: 119,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,460.52 : 193,937.04 = 86,819.08 : x
  2. Step 2: Convert to fraction form
    140,460.52/193,937.04 = 86,819.08/x
  3. Step 3: Cross multiply
    140,460.52x = 193,937.04 × 86,819.08
  4. Step 4: Simplify right side
    140,460.52x = 16,837,435,390.72
  5. Step 5: Solve for x
    x = 16,837,435,390.72/140,460.52
  6. Step 6: Final answer
    x = 119,873.08

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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.