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Finding the Fourth Proportional to 223,569.75, 308,527.08 and 121,595.22

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Solution

The fourth proportional to 223,569.75, 308,527.08 and 121,595.22 is: 167,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,569.75 : 308,527.08 = 121,595.22 : x
  2. Step 2: Convert to fraction form
    223,569.75/308,527.08 = 121,595.22/x
  3. Step 3: Cross multiply
    223,569.75x = 308,527.08 × 121,595.22
  4. Step 4: Simplify right side
    223,569.75x = 37,515,418,168.56
  5. Step 5: Solve for x
    x = 37,515,418,168.56/223,569.75
  6. Step 6: Final answer
    x = 167,801.85

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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.