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Finding the Fourth Proportional to 148,643.40, 222,965.10 and 132,313.80

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Solution

The fourth proportional to 148,643.40, 222,965.10 and 132,313.80 is: 198,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,643.40 : 222,965.10 = 132,313.80 : x
  2. Step 2: Convert to fraction form
    148,643.40/222,965.10 = 132,313.80/x
  3. Step 3: Cross multiply
    148,643.40x = 222,965.10 × 132,313.80
  4. Step 4: Simplify right side
    148,643.40x = 29,501,359,648.38
  5. Step 5: Solve for x
    x = 29,501,359,648.38/148,643.40
  6. Step 6: Final answer
    x = 198,470.70

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1.5x scale

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.