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Finding the Fourth Proportional to 322,281.12, 483,255.68 and 144,635.84

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Solution

The fourth proportional to 322,281.12, 483,255.68 and 144,635.84 is: 216,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,281.12 : 483,255.68 = 144,635.84 : x
  2. Step 2: Convert to fraction form
    322,281.12/483,255.68 = 144,635.84/x
  3. Step 3: Cross multiply
    322,281.12x = 483,255.68 × 144,635.84
  4. Step 4: Simplify right side
    322,281.12x = 69,896,091,211.57
  5. Step 5: Solve for x
    x = 69,896,091,211.57/322,281.12
  6. Step 6: Final answer
    x = 216,879.26

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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.