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Finding the Fourth Proportional to 121,501.84, 167,672.64 and 67,786.87

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Solution

The fourth proportional to 121,501.84, 167,672.64 and 67,786.87 is: 93,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.84 : 167,672.64 = 67,786.87 : x
  2. Step 2: Convert to fraction form
    121,501.84/167,672.64 = 67,786.87/x
  3. Step 3: Cross multiply
    121,501.84x = 167,672.64 × 67,786.87
  4. Step 4: Simplify right side
    121,501.84x = 11,366,002,611.87
  5. Step 5: Solve for x
    x = 11,366,002,611.87/121,501.84
  6. Step 6: Final answer
    x = 93,545.93

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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.