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Finding the Fourth Proportional to 223,496.02, 335,454.66 and 81,478.60

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Solution

The fourth proportional to 223,496.02, 335,454.66 and 81,478.60 is: 122,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,496.02 : 335,454.66 = 81,478.60 : x
  2. Step 2: Convert to fraction form
    223,496.02/335,454.66 = 81,478.60/x
  3. Step 3: Cross multiply
    223,496.02x = 335,454.66 × 81,478.60
  4. Step 4: Simplify right side
    223,496.02x = 27,332,376,060.28
  5. Step 5: Solve for x
    x = 27,332,376,060.28/223,496.02
  6. Step 6: Final answer
    x = 122,294.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.