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Finding the Fourth Proportional to 324,488.73, 487,038.48 and 164,679.45

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Solution

The fourth proportional to 324,488.73, 487,038.48 and 164,679.45 is: 247,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,488.73 : 487,038.48 = 164,679.45 : x
  2. Step 2: Convert to fraction form
    324,488.73/487,038.48 = 164,679.45/x
  3. Step 3: Cross multiply
    324,488.73x = 487,038.48 × 164,679.45
  4. Step 4: Simplify right side
    324,488.73x = 80,205,229,015.24
  5. Step 5: Solve for x
    x = 80,205,229,015.24/324,488.73
  6. Step 6: Final answer
    x = 247,174.16

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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.