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Finding the Fourth Proportional to 188,642.08, 282,932.36 and 55,491.20

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Solution

The fourth proportional to 188,642.08, 282,932.36 and 55,491.20 is: 83,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,642.08 : 282,932.36 = 55,491.20 : x
  2. Step 2: Convert to fraction form
    188,642.08/282,932.36 = 55,491.20/x
  3. Step 3: Cross multiply
    188,642.08x = 282,932.36 × 55,491.20
  4. Step 4: Simplify right side
    188,642.08x = 15,700,254,874.57
  5. Step 5: Solve for x
    x = 15,700,254,874.57/188,642.08
  6. Step 6: Final answer
    x = 83,227.75

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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.