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Finding the Fourth Proportional to 170,060.70, 255,091.05 and 143,816.70

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Solution

The fourth proportional to 170,060.70, 255,091.05 and 143,816.70 is: 215,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,060.70 : 255,091.05 = 143,816.70 : x
  2. Step 2: Convert to fraction form
    170,060.70/255,091.05 = 143,816.70/x
  3. Step 3: Cross multiply
    170,060.70x = 255,091.05 × 143,816.70
  4. Step 4: Simplify right side
    170,060.70x = 36,686,353,010.54
  5. Step 5: Solve for x
    x = 36,686,353,010.54/170,060.70
  6. Step 6: Final answer
    x = 215,725.05

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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.