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Finding the Fourth Proportional to 187,166.80, 281,009.40 and 147,768.40

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Solution

The fourth proportional to 187,166.80, 281,009.40 and 147,768.40 is: 221,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,166.80 : 281,009.40 = 147,768.40 : x
  2. Step 2: Convert to fraction form
    187,166.80/281,009.40 = 147,768.40/x
  3. Step 3: Cross multiply
    187,166.80x = 281,009.40 × 147,768.40
  4. Step 4: Simplify right side
    187,166.80x = 41,524,309,422.96
  5. Step 5: Solve for x
    x = 41,524,309,422.96/187,166.80
  6. Step 6: Final answer
    x = 221,857.24

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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.