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Finding the Fourth Proportional to 82,582.80, 114,011.55 and 54,370.50

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Solution

The fourth proportional to 82,582.80, 114,011.55 and 54,370.50 is: 75,062.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,582.80 : 114,011.55 = 54,370.50 : x
  2. Step 2: Convert to fraction form
    82,582.80/114,011.55 = 54,370.50/x
  3. Step 3: Cross multiply
    82,582.80x = 114,011.55 × 54,370.50
  4. Step 4: Simplify right side
    82,582.80x = 6,198,864,979.28
  5. Step 5: Solve for x
    x = 6,198,864,979.28/82,582.80
  6. Step 6: Final answer
    x = 75,062.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.