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Finding the Fourth Proportional to 84,820.82, 127,255.85 and 34,193.72

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Solution

The fourth proportional to 84,820.82, 127,255.85 and 34,193.72 is: 51,300.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,820.82 : 127,255.85 = 34,193.72 : x
  2. Step 2: Convert to fraction form
    84,820.82/127,255.85 = 34,193.72/x
  3. Step 3: Cross multiply
    84,820.82x = 127,255.85 × 34,193.72
  4. Step 4: Simplify right side
    84,820.82x = 4,351,350,096.01
  5. Step 5: Solve for x
    x = 4,351,350,096.01/84,820.82
  6. Step 6: Final answer
    x = 51,300.50

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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.