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Finding the Fourth Proportional to 121,197, 167,264.82 and 70,938.12

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Solution

The fourth proportional to 121,197, 167,264.82 and 70,938.12 is: 97,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,197 : 167,264.82 = 70,938.12 : x
  2. Step 2: Convert to fraction form
    121,197/167,264.82 = 70,938.12/x
  3. Step 3: Cross multiply
    121,197x = 167,264.82 × 70,938.12
  4. Step 4: Simplify right side
    121,197x = 11,865,451,872.94
  5. Step 5: Solve for x
    x = 11,865,451,872.94/121,197
  6. Step 6: Final answer
    x = 97,902.19

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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.