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Finding the Fourth Proportional to 223,693.59, 308,697.15 and 123,091.59

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Solution

The fourth proportional to 223,693.59, 308,697.15 and 123,091.59 is: 169,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,693.59 : 308,697.15 = 123,091.59 : x
  2. Step 2: Convert to fraction form
    223,693.59/308,697.15 = 123,091.59/x
  3. Step 3: Cross multiply
    223,693.59x = 308,697.15 × 123,091.59
  4. Step 4: Simplify right side
    223,693.59x = 37,998,023,021.97
  5. Step 5: Solve for x
    x = 37,998,023,021.97/223,693.59
  6. Step 6: Final answer
    x = 169,866.39

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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.