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Finding the Fourth Proportional to 187,221.60, 280,832.40 and 177,598.80

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Solution

The fourth proportional to 187,221.60, 280,832.40 and 177,598.80 is: 266,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,221.60 : 280,832.40 = 177,598.80 : x
  2. Step 2: Convert to fraction form
    187,221.60/280,832.40 = 177,598.80/x
  3. Step 3: Cross multiply
    187,221.60x = 280,832.40 × 177,598.80
  4. Step 4: Simplify right side
    187,221.60x = 49,875,497,241.12
  5. Step 5: Solve for x
    x = 49,875,497,241.12/187,221.60
  6. Step 6: Final answer
    x = 266,398.20

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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.