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Finding the Fourth Proportional to 223,397.66, 308,288.78 and 122,795.66

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Solution

The fourth proportional to 223,397.66, 308,288.78 and 122,795.66 is: 169,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,397.66 : 308,288.78 = 122,795.66 : x
  2. Step 2: Convert to fraction form
    223,397.66/308,288.78 = 122,795.66/x
  3. Step 3: Cross multiply
    223,397.66x = 308,288.78 × 122,795.66
  4. Step 4: Simplify right side
    223,397.66x = 37,856,524,210.69
  5. Step 5: Solve for x
    x = 37,856,524,210.69/223,397.66
  6. Step 6: Final answer
    x = 169,458.02

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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.