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Finding the Fourth Proportional to 245,107.48, 367,972.32 and 208,404.76

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Solution

The fourth proportional to 245,107.48, 367,972.32 and 208,404.76 is: 312,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,107.48 : 367,972.32 = 208,404.76 : x
  2. Step 2: Convert to fraction form
    245,107.48/367,972.32 = 208,404.76/x
  3. Step 3: Cross multiply
    245,107.48x = 367,972.32 × 208,404.76
  4. Step 4: Simplify right side
    245,107.48x = 76,687,183,036.24
  5. Step 5: Solve for x
    x = 76,687,183,036.24/245,107.48
  6. Step 6: Final answer
    x = 312,871.66

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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.