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Finding the Fourth Proportional to 121,065.76, 167,068.24 and 67,349.62

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Solution

The fourth proportional to 121,065.76, 167,068.24 and 67,349.62 is: 92,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,065.76 : 167,068.24 = 67,349.62 : x
  2. Step 2: Convert to fraction form
    121,065.76/167,068.24 = 67,349.62/x
  3. Step 3: Cross multiply
    121,065.76x = 167,068.24 × 67,349.62
  4. Step 4: Simplify right side
    121,065.76x = 11,251,982,478.07
  5. Step 5: Solve for x
    x = 11,251,982,478.07/121,065.76
  6. Step 6: Final answer
    x = 92,941.08

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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.