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Finding the Fourth Proportional to 240,103.80, 359,637.30 and 198,631.80

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Solution

The fourth proportional to 240,103.80, 359,637.30 and 198,631.80 is: 297,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,103.80 : 359,637.30 = 198,631.80 : x
  2. Step 2: Convert to fraction form
    240,103.80/359,637.30 = 198,631.80/x
  3. Step 3: Cross multiply
    240,103.80x = 359,637.30 × 198,631.80
  4. Step 4: Simplify right side
    240,103.80x = 71,435,404,246.14
  5. Step 5: Solve for x
    x = 71,435,404,246.14/240,103.80
  6. Step 6: Final answer
    x = 297,518.84

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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.