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Finding the Fourth Proportional to 223,475.89, 308,396.70 and 122,873.89

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Solution

The fourth proportional to 223,475.89, 308,396.70 and 122,873.89 is: 169,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,475.89 : 308,396.70 = 122,873.89 : x
  2. Step 2: Convert to fraction form
    223,475.89/308,396.70 = 122,873.89/x
  3. Step 3: Cross multiply
    223,475.89x = 308,396.70 × 122,873.89
  4. Step 4: Simplify right side
    223,475.89x = 37,893,902,192.16
  5. Step 5: Solve for x
    x = 37,893,902,192.16/223,475.89
  6. Step 6: Final answer
    x = 169,565.95

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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.