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Finding the Fourth Proportional to 90,693.73, 125,192.55 and 68,097.97

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Solution

The fourth proportional to 90,693.73, 125,192.55 and 68,097.97 is: 94,001.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693.73 : 125,192.55 = 68,097.97 : x
  2. Step 2: Convert to fraction form
    90,693.73/125,192.55 = 68,097.97/x
  3. Step 3: Cross multiply
    90,693.73x = 125,192.55 × 68,097.97
  4. Step 4: Simplify right side
    90,693.73x = 8,525,358,514.12
  5. Step 5: Solve for x
    x = 8,525,358,514.12/90,693.73
  6. Step 6: Final answer
    x = 94,001.63

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1.5x scale

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.