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Finding the Fourth Proportional to 121,554.44, 167,753.56 and 67,849.92

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Solution

The fourth proportional to 121,554.44, 167,753.56 and 67,849.92 is: 93,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,554.44 : 167,753.56 = 67,849.92 : x
  2. Step 2: Convert to fraction form
    121,554.44/167,753.56 = 67,849.92/x
  3. Step 3: Cross multiply
    121,554.44x = 167,753.56 × 67,849.92
  4. Step 4: Simplify right side
    121,554.44x = 11,382,065,625.72
  5. Step 5: Solve for x
    x = 11,382,065,625.72/121,554.44
  6. Step 6: Final answer
    x = 93,637.60

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1.5x scale

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.