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Finding the Fourth Proportional to 186,728.84, 278,902.61 and 168,932.06

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Solution

The fourth proportional to 186,728.84, 278,902.61 and 168,932.06 is: 252,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,728.84 : 278,902.61 = 168,932.06 : x
  2. Step 2: Convert to fraction form
    186,728.84/278,902.61 = 168,932.06/x
  3. Step 3: Cross multiply
    186,728.84x = 278,902.61 × 168,932.06
  4. Step 4: Simplify right side
    186,728.84x = 47,115,591,474.49
  5. Step 5: Solve for x
    x = 47,115,591,474.49/186,728.84
  6. Step 6: Final answer
    x = 252,320.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.