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Finding the Fourth Proportional to 324,040.58, 486,060.91 and 87,383.28

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Solution

The fourth proportional to 324,040.58, 486,060.91 and 87,383.28 is: 131,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,040.58 : 486,060.91 = 87,383.28 : x
  2. Step 2: Convert to fraction form
    324,040.58/486,060.91 = 87,383.28/x
  3. Step 3: Cross multiply
    324,040.58x = 486,060.91 × 87,383.28
  4. Step 4: Simplify right side
    324,040.58x = 42,473,596,595.58
  5. Step 5: Solve for x
    x = 42,473,596,595.58/324,040.58
  6. Step 6: Final answer
    x = 131,074.93

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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.