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Finding the Fourth Proportional to 121,160, 167,199 and 67,444.92

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Solution

The fourth proportional to 121,160, 167,199 and 67,444.92 is: 93,072.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160 : 167,199 = 67,444.92 : x
  2. Step 2: Convert to fraction form
    121,160/167,199 = 67,444.92/x
  3. Step 3: Cross multiply
    121,160x = 167,199 × 67,444.92
  4. Step 4: Simplify right side
    121,160x = 11,276,723,179.08
  5. Step 5: Solve for x
    x = 11,276,723,179.08/121,160
  6. Step 6: Final answer
    x = 93,072.99

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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.