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Finding the Fourth Proportional to 148,672.56, 205,338.41 and 97,912.19

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Solution

The fourth proportional to 148,672.56, 205,338.41 and 97,912.19 is: 135,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,672.56 : 205,338.41 = 97,912.19 : x
  2. Step 2: Convert to fraction form
    148,672.56/205,338.41 = 97,912.19/x
  3. Step 3: Cross multiply
    148,672.56x = 205,338.41 × 97,912.19
  4. Step 4: Simplify right side
    148,672.56x = 20,105,133,805.17
  5. Step 5: Solve for x
    x = 20,105,133,805.17/148,672.56
  6. Step 6: Final answer
    x = 135,230.96

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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.