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Finding the Fourth Proportional to 363,230.10, 544,903.56 and 138,581.46

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Solution

The fourth proportional to 363,230.10, 544,903.56 and 138,581.46 is: 207,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,230.10 : 544,903.56 = 138,581.46 : x
  2. Step 2: Convert to fraction form
    363,230.10/544,903.56 = 138,581.46/x
  3. Step 3: Cross multiply
    363,230.10x = 544,903.56 × 138,581.46
  4. Step 4: Simplify right side
    363,230.10x = 75,513,530,904.00
  5. Step 5: Solve for x
    x = 75,513,530,904.00/363,230.10
  6. Step 6: Final answer
    x = 207,894.47

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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.