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Finding the Fourth Proportional to 634,086.71, 951,121.97 and 154,315.34

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Solution

The fourth proportional to 634,086.71, 951,121.97 and 154,315.34 is: 231,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,086.71 : 951,121.97 = 154,315.34 : x
  2. Step 2: Convert to fraction form
    634,086.71/951,121.97 = 154,315.34/x
  3. Step 3: Cross multiply
    634,086.71x = 951,121.97 × 154,315.34
  4. Step 4: Simplify right side
    634,086.71x = 146,772,711,788.25
  5. Step 5: Solve for x
    x = 146,772,711,788.25/634,086.71
  6. Step 6: Final answer
    x = 231,471.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.