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Finding the Fourth Proportional to 148,780.80, 223,171.20 and 141,868.80

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Solution

The fourth proportional to 148,780.80, 223,171.20 and 141,868.80 is: 212,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,780.80 : 223,171.20 = 141,868.80 : x
  2. Step 2: Convert to fraction form
    148,780.80/223,171.20 = 141,868.80/x
  3. Step 3: Cross multiply
    148,780.80x = 223,171.20 × 141,868.80
  4. Step 4: Simplify right side
    148,780.80x = 31,661,030,338.56
  5. Step 5: Solve for x
    x = 31,661,030,338.56/148,780.80
  6. Step 6: Final answer
    x = 212,803.20

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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.