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Finding the Fourth Proportional to 187,231.20, 280,501.20 and 174,789.60

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Solution

The fourth proportional to 187,231.20, 280,501.20 and 174,789.60 is: 261,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,231.20 : 280,501.20 = 174,789.60 : x
  2. Step 2: Convert to fraction form
    187,231.20/280,501.20 = 174,789.60/x
  3. Step 3: Cross multiply
    187,231.20x = 280,501.20 × 174,789.60
  4. Step 4: Simplify right side
    187,231.20x = 49,028,692,547.52
  5. Step 5: Solve for x
    x = 49,028,692,547.52/187,231.20
  6. Step 6: Final answer
    x = 261,861.77

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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.