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Finding the Fourth Proportional to 324,658.10, 486,987.15 and 114,317.30

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Solution

The fourth proportional to 324,658.10, 486,987.15 and 114,317.30 is: 171,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,658.10 : 486,987.15 = 114,317.30 : x
  2. Step 2: Convert to fraction form
    324,658.10/486,987.15 = 114,317.30/x
  3. Step 3: Cross multiply
    324,658.10x = 486,987.15 × 114,317.30
  4. Step 4: Simplify right side
    324,658.10x = 55,671,056,122.70
  5. Step 5: Solve for x
    x = 55,671,056,122.70/324,658.10
  6. Step 6: Final answer
    x = 171,475.95

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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.