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Finding the Fourth Proportional to 169,912.75, 234,231.73 and 118,766.20

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Solution

The fourth proportional to 169,912.75, 234,231.73 and 118,766.20 is: 163,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.75 : 234,231.73 = 118,766.20 : x
  2. Step 2: Convert to fraction form
    169,912.75/234,231.73 = 118,766.20/x
  3. Step 3: Cross multiply
    169,912.75x = 234,231.73 × 118,766.20
  4. Step 4: Simplify right side
    169,912.75x = 27,818,812,491.53
  5. Step 5: Solve for x
    x = 27,818,812,491.53/169,912.75
  6. Step 6: Final answer
    x = 163,724.10

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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.