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Finding the Fourth Proportional to 245,115.10, 367,672.65 and 205,749.10

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Solution

The fourth proportional to 245,115.10, 367,672.65 and 205,749.10 is: 308,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,115.10 : 367,672.65 = 205,749.10 : x
  2. Step 2: Convert to fraction form
    245,115.10/367,672.65 = 205,749.10/x
  3. Step 3: Cross multiply
    245,115.10x = 367,672.65 × 205,749.10
  4. Step 4: Simplify right side
    245,115.10x = 75,648,316,832.12
  5. Step 5: Solve for x
    x = 75,648,316,832.12/245,115.10
  6. Step 6: Final answer
    x = 308,623.65

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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.