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Finding the Fourth Proportional to 187,073.80, 280,610.70 and 166,856.20

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Solution

The fourth proportional to 187,073.80, 280,610.70 and 166,856.20 is: 250,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,073.80 : 280,610.70 = 166,856.20 : x
  2. Step 2: Convert to fraction form
    187,073.80/280,610.70 = 166,856.20/x
  3. Step 3: Cross multiply
    187,073.80x = 280,610.70 × 166,856.20
  4. Step 4: Simplify right side
    187,073.80x = 46,821,635,081.34
  5. Step 5: Solve for x
    x = 46,821,635,081.34/187,073.80
  6. Step 6: Final answer
    x = 250,284.30

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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.