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Finding the Fourth Proportional to 223,693.97, 308,697.68 and 123,091.97

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Solution

The fourth proportional to 223,693.97, 308,697.68 and 123,091.97 is: 169,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,693.97 : 308,697.68 = 123,091.97 : x
  2. Step 2: Convert to fraction form
    223,693.97/308,697.68 = 123,091.97/x
  3. Step 3: Cross multiply
    223,693.97x = 308,697.68 × 123,091.97
  4. Step 4: Simplify right side
    223,693.97x = 37,998,205,721.91
  5. Step 5: Solve for x
    x = 37,998,205,721.91/223,693.97
  6. Step 6: Final answer
    x = 169,866.92

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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.