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Finding the Fourth Proportional to 263,654.20, 363,865.20 and 148,953.91

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Solution

The fourth proportional to 263,654.20, 363,865.20 and 148,953.91 is: 205,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,654.20 : 363,865.20 = 148,953.91 : x
  2. Step 2: Convert to fraction form
    263,654.20/363,865.20 = 148,953.91/x
  3. Step 3: Cross multiply
    263,654.20x = 363,865.20 × 148,953.91
  4. Step 4: Simplify right side
    263,654.20x = 54,199,144,252.93
  5. Step 5: Solve for x
    x = 54,199,144,252.93/263,654.20
  6. Step 6: Final answer
    x = 205,569.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.