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Finding the Fourth Proportional to 363,673.47, 544,944.41 and 138,911.22

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Solution

The fourth proportional to 363,673.47, 544,944.41 and 138,911.22 is: 208,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,673.47 : 544,944.41 = 138,911.22 : x
  2. Step 2: Convert to fraction form
    363,673.47/544,944.41 = 138,911.22/x
  3. Step 3: Cross multiply
    363,673.47x = 544,944.41 × 138,911.22
  4. Step 4: Simplify right side
    363,673.47x = 75,698,892,825.28
  5. Step 5: Solve for x
    x = 75,698,892,825.28/363,673.47
  6. Step 6: Final answer
    x = 208,150.72

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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.