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Finding the Fourth Proportional to 303,248.30, 454,981.80 and 125,809.70

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Solution

The fourth proportional to 303,248.30, 454,981.80 and 125,809.70 is: 188,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,248.30 : 454,981.80 = 125,809.70 : x
  2. Step 2: Convert to fraction form
    303,248.30/454,981.80 = 125,809.70/x
  3. Step 3: Cross multiply
    303,248.30x = 454,981.80 × 125,809.70
  4. Step 4: Simplify right side
    303,248.30x = 57,241,123,763.46
  5. Step 5: Solve for x
    x = 57,241,123,763.46/303,248.30
  6. Step 6: Final answer
    x = 188,759.92

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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.