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Finding the Fourth Proportional to 82,759.66, 124,201.08 and 40,662.34

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Solution

The fourth proportional to 82,759.66, 124,201.08 and 40,662.34 is: 61,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,759.66 : 124,201.08 = 40,662.34 : x
  2. Step 2: Convert to fraction form
    82,759.66/124,201.08 = 40,662.34/x
  3. Step 3: Cross multiply
    82,759.66x = 124,201.08 × 40,662.34
  4. Step 4: Simplify right side
    82,759.66x = 5,050,306,543.33
  5. Step 5: Solve for x
    x = 5,050,306,543.33/82,759.66
  6. Step 6: Final answer
    x = 61,023.77

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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.