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Finding the Fourth Proportional to 82,755.36, 124,045.56 and 40,576.68

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Solution

The fourth proportional to 82,755.36, 124,045.56 and 40,576.68 is: 60,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,755.36 : 124,045.56 = 40,576.68 : x
  2. Step 2: Convert to fraction form
    82,755.36/124,045.56 = 40,576.68/x
  3. Step 3: Cross multiply
    82,755.36x = 124,045.56 × 40,576.68
  4. Step 4: Simplify right side
    82,755.36x = 5,033,356,993.54
  5. Step 5: Solve for x
    x = 5,033,356,993.54/82,755.36
  6. Step 6: Final answer
    x = 60,822.13

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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.