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Finding the Fourth Proportional to 121,426.44, 167,569.44 and 67,714.95

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Solution

The fourth proportional to 121,426.44, 167,569.44 and 67,714.95 is: 93,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,426.44 : 167,569.44 = 67,714.95 : x
  2. Step 2: Convert to fraction form
    121,426.44/167,569.44 = 67,714.95/x
  3. Step 3: Cross multiply
    121,426.44x = 167,569.44 × 67,714.95
  4. Step 4: Simplify right side
    121,426.44x = 11,346,956,251.13
  5. Step 5: Solve for x
    x = 11,346,956,251.13/121,426.44
  6. Step 6: Final answer
    x = 93,447.16

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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.