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Finding the Fourth Proportional to 243,020.10, 364,530.15 and 204,528.90

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Solution

The fourth proportional to 243,020.10, 364,530.15 and 204,528.90 is: 306,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,020.10 : 364,530.15 = 204,528.90 : x
  2. Step 2: Convert to fraction form
    243,020.10/364,530.15 = 204,528.90/x
  3. Step 3: Cross multiply
    243,020.10x = 364,530.15 × 204,528.90
  4. Step 4: Simplify right side
    243,020.10x = 74,556,950,596.34
  5. Step 5: Solve for x
    x = 74,556,950,596.34/243,020.10
  6. Step 6: Final answer
    x = 306,793.35

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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.