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Finding the Fourth Proportional to 121,052.60, 167,061.86 and 67,341.60

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Solution

The fourth proportional to 121,052.60, 167,061.86 and 67,341.60 is: 92,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,052.60 : 167,061.86 = 67,341.60 : x
  2. Step 2: Convert to fraction form
    121,052.60/167,061.86 = 67,341.60/x
  3. Step 3: Cross multiply
    121,052.60x = 167,061.86 × 67,341.60
  4. Step 4: Simplify right side
    121,052.60x = 11,250,212,951.38
  5. Step 5: Solve for x
    x = 11,250,212,951.38/121,052.60
  6. Step 6: Final answer
    x = 92,936.57

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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.