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Finding the Fourth Proportional to 121,084.56, 167,077.01 and 67,368.20

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Solution

The fourth proportional to 121,084.56, 167,077.01 and 67,368.20 is: 92,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,084.56 : 167,077.01 = 67,368.20 : x
  2. Step 2: Convert to fraction form
    121,084.56/167,077.01 = 67,368.20/x
  3. Step 3: Cross multiply
    121,084.56x = 167,077.01 × 67,368.20
  4. Step 4: Simplify right side
    121,084.56x = 11,255,676,252.86
  5. Step 5: Solve for x
    x = 11,255,676,252.86/121,084.56
  6. Step 6: Final answer
    x = 92,957.16

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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.