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Finding the Fourth Proportional to 84,761.70, 127,183.86 and 34,856.76

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Solution

The fourth proportional to 84,761.70, 127,183.86 and 34,856.76 is: 52,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.70 : 127,183.86 = 34,856.76 : x
  2. Step 2: Convert to fraction form
    84,761.70/127,183.86 = 34,856.76/x
  3. Step 3: Cross multiply
    84,761.70x = 127,183.86 × 34,856.76
  4. Step 4: Simplify right side
    84,761.70x = 4,433,217,283.89
  5. Step 5: Solve for x
    x = 4,433,217,283.89/84,761.70
  6. Step 6: Final answer
    x = 52,302.13

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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.