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Finding the Fourth Proportional to 193,167, 266,657.76 and 121,652.10

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Solution

The fourth proportional to 193,167, 266,657.76 and 121,652.10 is: 167,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,167 : 266,657.76 = 121,652.10 : x
  2. Step 2: Convert to fraction form
    193,167/266,657.76 = 121,652.10/x
  3. Step 3: Cross multiply
    193,167x = 266,657.76 × 121,652.10
  4. Step 4: Simplify right side
    193,167x = 32,439,476,485.30
  5. Step 5: Solve for x
    x = 32,439,476,485.30/193,167
  6. Step 6: Final answer
    x = 167,934.88

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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.