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Finding the Fourth Proportional to 245,208.06, 367,849.08 and 87,424.38

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Solution

The fourth proportional to 245,208.06, 367,849.08 and 87,424.38 is: 131,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,208.06 : 367,849.08 = 87,424.38 : x
  2. Step 2: Convert to fraction form
    245,208.06/367,849.08 = 87,424.38/x
  3. Step 3: Cross multiply
    245,208.06x = 367,849.08 × 87,424.38
  4. Step 4: Simplify right side
    245,208.06x = 32,158,977,752.57
  5. Step 5: Solve for x
    x = 32,158,977,752.57/245,208.06
  6. Step 6: Final answer
    x = 131,149.76

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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.