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Finding the Fourth Proportional to 483,581.78, 725,182.71 and 163,645.54

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Solution

The fourth proportional to 483,581.78, 725,182.71 and 163,645.54 is: 245,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,581.78 : 725,182.71 = 163,645.54 : x
  2. Step 2: Convert to fraction form
    483,581.78/725,182.71 = 163,645.54/x
  3. Step 3: Cross multiply
    483,581.78x = 725,182.71 × 163,645.54
  4. Step 4: Simplify right side
    483,581.78x = 118,672,916,176.61
  5. Step 5: Solve for x
    x = 118,672,916,176.61/483,581.78
  6. Step 6: Final answer
    x = 245,404.03

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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.