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Finding the Fourth Proportional to 223,244.75, 308,072.58 and 121,267.92

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Solution

The fourth proportional to 223,244.75, 308,072.58 and 121,267.92 is: 167,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,244.75 : 308,072.58 = 121,267.92 : x
  2. Step 2: Convert to fraction form
    223,244.75/308,072.58 = 121,267.92/x
  3. Step 3: Cross multiply
    223,244.75x = 308,072.58 × 121,267.92
  4. Step 4: Simplify right side
    223,244.75x = 37,359,320,985.63
  5. Step 5: Solve for x
    x = 37,359,320,985.63/223,244.75
  6. Step 6: Final answer
    x = 167,346.92

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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.