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Finding the Fourth Proportional to 324,352.43, 486,527.49 and 87,695.06

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Solution

The fourth proportional to 324,352.43, 486,527.49 and 87,695.06 is: 131,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,352.43 : 486,527.49 = 87,695.06 : x
  2. Step 2: Convert to fraction form
    324,352.43/486,527.49 = 87,695.06/x
  3. Step 3: Cross multiply
    324,352.43x = 486,527.49 × 87,695.06
  4. Step 4: Simplify right side
    324,352.43x = 42,666,058,643.52
  5. Step 5: Solve for x
    x = 42,666,058,643.52/324,352.43
  6. Step 6: Final answer
    x = 131,542.28

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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.