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Finding the Fourth Proportional to 193,293.92, 266,746.56 and 108,415.52

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Solution

The fourth proportional to 193,293.92, 266,746.56 and 108,415.52 is: 149,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,293.92 : 266,746.56 = 108,415.52 : x
  2. Step 2: Convert to fraction form
    193,293.92/266,746.56 = 108,415.52/x
  3. Step 3: Cross multiply
    193,293.92x = 266,746.56 × 108,415.52
  4. Step 4: Simplify right side
    193,293.92x = 28,919,467,010.61
  5. Step 5: Solve for x
    x = 28,919,467,010.61/193,293.92
  6. Step 6: Final answer
    x = 149,613.95

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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.