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Finding the Fourth Proportional to 187,286.30, 280,929.45 and 124,300.70

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Solution

The fourth proportional to 187,286.30, 280,929.45 and 124,300.70 is: 186,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,286.30 : 280,929.45 = 124,300.70 : x
  2. Step 2: Convert to fraction form
    187,286.30/280,929.45 = 124,300.70/x
  3. Step 3: Cross multiply
    187,286.30x = 280,929.45 × 124,300.70
  4. Step 4: Simplify right side
    187,286.30x = 34,919,727,285.62
  5. Step 5: Solve for x
    x = 34,919,727,285.62/187,286.30
  6. Step 6: Final answer
    x = 186,451.05

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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.