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Finding the Fourth Proportional to 324,111.99, 486,167.96 and 87,454.66

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Solution

The fourth proportional to 324,111.99, 486,167.96 and 87,454.66 is: 131,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,111.99 : 486,167.96 = 87,454.66 : x
  2. Step 2: Convert to fraction form
    324,111.99/486,167.96 = 87,454.66/x
  3. Step 3: Cross multiply
    324,111.99x = 486,167.96 × 87,454.66
  4. Step 4: Simplify right side
    324,111.99x = 42,517,653,644.69
  5. Step 5: Solve for x
    x = 42,517,653,644.69/324,111.99
  6. Step 6: Final answer
    x = 131,181.98

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1.5x scale

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.