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Finding the Fourth Proportional to 170,627.70, 255,832.20 and 70,856.76

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Solution

The fourth proportional to 170,627.70, 255,832.20 and 70,856.76 is: 106,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,627.70 : 255,832.20 = 70,856.76 : x
  2. Step 2: Convert to fraction form
    170,627.70/255,832.20 = 70,856.76/x
  3. Step 3: Cross multiply
    170,627.70x = 255,832.20 × 70,856.76
  4. Step 4: Simplify right side
    170,627.70x = 18,127,440,795.67
  5. Step 5: Solve for x
    x = 18,127,440,795.67/170,627.70
  6. Step 6: Final answer
    x = 106,239.73

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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.