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Finding the Fourth Proportional to 121,674.65, 167,894.42 and 67,952.81

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Solution

The fourth proportional to 121,674.65, 167,894.42 and 67,952.81 is: 93,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,674.65 : 167,894.42 = 67,952.81 : x
  2. Step 2: Convert to fraction form
    121,674.65/167,894.42 = 67,952.81/x
  3. Step 3: Cross multiply
    121,674.65x = 167,894.42 × 67,952.81
  4. Step 4: Simplify right side
    121,674.65x = 11,408,896,443.08
  5. Step 5: Solve for x
    x = 11,408,896,443.08/121,674.65
  6. Step 6: Final answer
    x = 93,765.60

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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.