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Finding the Fourth Proportional to 187,998.80, 281,998.20 and 117,035.60

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Solution

The fourth proportional to 187,998.80, 281,998.20 and 117,035.60 is: 175,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,998.80 : 281,998.20 = 117,035.60 : x
  2. Step 2: Convert to fraction form
    187,998.80/281,998.20 = 117,035.60/x
  3. Step 3: Cross multiply
    187,998.80x = 281,998.20 × 117,035.60
  4. Step 4: Simplify right side
    187,998.80x = 33,003,828,535.92
  5. Step 5: Solve for x
    x = 33,003,828,535.92/187,998.80
  6. Step 6: Final answer
    x = 175,553.40

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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.