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Finding the Fourth Proportional to 363,937.80, 545,906.70 and 223,775.40

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Solution

The fourth proportional to 363,937.80, 545,906.70 and 223,775.40 is: 335,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,937.80 : 545,906.70 = 223,775.40 : x
  2. Step 2: Convert to fraction form
    363,937.80/545,906.70 = 223,775.40/x
  3. Step 3: Cross multiply
    363,937.80x = 545,906.70 × 223,775.40
  4. Step 4: Simplify right side
    363,937.80x = 122,160,490,155.18
  5. Step 5: Solve for x
    x = 122,160,490,155.18/363,937.80
  6. Step 6: Final answer
    x = 335,663.10

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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.