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Finding the Fourth Proportional to 171,226.80, 256,820.64 and 66,036.96

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Solution

The fourth proportional to 171,226.80, 256,820.64 and 66,036.96 is: 99,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,226.80 : 256,820.64 = 66,036.96 : x
  2. Step 2: Convert to fraction form
    171,226.80/256,820.64 = 66,036.96/x
  3. Step 3: Cross multiply
    171,226.80x = 256,820.64 × 66,036.96
  4. Step 4: Simplify right side
    171,226.80x = 16,959,654,330.85
  5. Step 5: Solve for x
    x = 16,959,654,330.85/171,226.80
  6. Step 6: Final answer
    x = 99,047.90

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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.