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Finding the Fourth Proportional to 354,581.52, 531,716.64 and 132,810

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Solution

The fourth proportional to 354,581.52, 531,716.64 and 132,810 is: 199,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,581.52 : 531,716.64 = 132,810 : x
  2. Step 2: Convert to fraction form
    354,581.52/531,716.64 = 132,810/x
  3. Step 3: Cross multiply
    354,581.52x = 531,716.64 × 132,810
  4. Step 4: Simplify right side
    354,581.52x = 70,617,286,958.40
  5. Step 5: Solve for x
    x = 70,617,286,958.40/354,581.52
  6. Step 6: Final answer
    x = 199,156.70

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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.