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Finding the Fourth Proportional to 186,870.60, 280,251.23 and 66,913.65

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Solution

The fourth proportional to 186,870.60, 280,251.23 and 66,913.65 is: 100,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,870.60 : 280,251.23 = 66,913.65 : x
  2. Step 2: Convert to fraction form
    186,870.60/280,251.23 = 66,913.65/x
  3. Step 3: Cross multiply
    186,870.60x = 280,251.23 × 66,913.65
  4. Step 4: Simplify right side
    186,870.60x = 18,752,632,381.72
  5. Step 5: Solve for x
    x = 18,752,632,381.72/186,870.60
  6. Step 6: Final answer
    x = 100,350.90

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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.