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Finding the Fourth Proportional to 121,157.46, 167,195.01 and 67,442.10

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Solution

The fourth proportional to 121,157.46, 167,195.01 and 67,442.10 is: 93,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157.46 : 167,195.01 = 67,442.10 : x
  2. Step 2: Convert to fraction form
    121,157.46/167,195.01 = 67,442.10/x
  3. Step 3: Cross multiply
    121,157.46x = 167,195.01 × 67,442.10
  4. Step 4: Simplify right side
    121,157.46x = 11,275,982,583.92
  5. Step 5: Solve for x
    x = 11,275,982,583.92/121,157.46
  6. Step 6: Final answer
    x = 93,068.83

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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.