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Finding the Fourth Proportional to 81,602.92, 122,315.10 and 34,883.56

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Solution

The fourth proportional to 81,602.92, 122,315.10 and 34,883.56 is: 52,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,602.92 : 122,315.10 = 34,883.56 : x
  2. Step 2: Convert to fraction form
    81,602.92/122,315.10 = 34,883.56/x
  3. Step 3: Cross multiply
    81,602.92x = 122,315.10 × 34,883.56
  4. Step 4: Simplify right side
    81,602.92x = 4,266,786,129.76
  5. Step 5: Solve for x
    x = 4,266,786,129.76/81,602.92
  6. Step 6: Final answer
    x = 52,287.17

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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.