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Finding the Fourth Proportional to 324,501.14, 486,691.52 and 87,813.06

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Solution

The fourth proportional to 324,501.14, 486,691.52 and 87,813.06 is: 131,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,501.14 : 486,691.52 = 87,813.06 : x
  2. Step 2: Convert to fraction form
    324,501.14/486,691.52 = 87,813.06/x
  3. Step 3: Cross multiply
    324,501.14x = 486,691.52 × 87,813.06
  4. Step 4: Simplify right side
    324,501.14x = 42,737,871,647.25
  5. Step 5: Solve for x
    x = 42,737,871,647.25/324,501.14
  6. Step 6: Final answer
    x = 131,703.30

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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.