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Finding the Fourth Proportional to 121,497, 167,663.50 and 67,054.29

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Solution

The fourth proportional to 121,497, 167,663.50 and 67,054.29 is: 92,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,497 : 167,663.50 = 67,054.29 : x
  2. Step 2: Convert to fraction form
    121,497/167,663.50 = 67,054.29/x
  3. Step 3: Cross multiply
    121,497x = 167,663.50 × 67,054.29
  4. Step 4: Simplify right side
    121,497x = 11,242,556,951.42
  5. Step 5: Solve for x
    x = 11,242,556,951.42/121,497
  6. Step 6: Final answer
    x = 92,533.62

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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.