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Finding the Fourth Proportional to 192,425.40, 288,929.70 and 148,102.20

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Solution

The fourth proportional to 192,425.40, 288,929.70 and 148,102.20 is: 222,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,425.40 : 288,929.70 = 148,102.20 : x
  2. Step 2: Convert to fraction form
    192,425.40/288,929.70 = 148,102.20/x
  3. Step 3: Cross multiply
    192,425.40x = 288,929.70 × 148,102.20
  4. Step 4: Simplify right side
    192,425.40x = 42,791,124,215.34
  5. Step 5: Solve for x
    x = 42,791,124,215.34/192,425.40
  6. Step 6: Final answer
    x = 222,377.73

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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.