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Finding the Fourth Proportional to 82,752.69, 124,074.63 and 54,586.83

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Solution

The fourth proportional to 82,752.69, 124,074.63 and 54,586.83 is: 81,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,752.69 : 124,074.63 = 54,586.83 : x
  2. Step 2: Convert to fraction form
    82,752.69/124,074.63 = 54,586.83/x
  3. Step 3: Cross multiply
    82,752.69x = 124,074.63 × 54,586.83
  4. Step 4: Simplify right side
    82,752.69x = 6,772,840,735.12
  5. Step 5: Solve for x
    x = 6,772,840,735.12/82,752.69
  6. Step 6: Final answer
    x = 81,844.36

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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.