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Finding the Fourth Proportional to 363,501.50, 545,301.93 and 126,808.70

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Solution

The fourth proportional to 363,501.50, 545,301.93 and 126,808.70 is: 190,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,501.50 : 545,301.93 = 126,808.70 : x
  2. Step 2: Convert to fraction form
    363,501.50/545,301.93 = 126,808.70/x
  3. Step 3: Cross multiply
    363,501.50x = 545,301.93 × 126,808.70
  4. Step 4: Simplify right side
    363,501.50x = 69,149,028,850.79
  5. Step 5: Solve for x
    x = 69,149,028,850.79/363,501.50
  6. Step 6: Final answer
    x = 190,230.38

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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.