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Finding the Fourth Proportional to 245,206.10, 367,809.15 and 205,840.10

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Solution

The fourth proportional to 245,206.10, 367,809.15 and 205,840.10 is: 308,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,206.10 : 367,809.15 = 205,840.10 : x
  2. Step 2: Convert to fraction form
    245,206.10/367,809.15 = 205,840.10/x
  3. Step 3: Cross multiply
    245,206.10x = 367,809.15 × 205,840.10
  4. Step 4: Simplify right side
    245,206.10x = 75,709,872,216.92
  5. Step 5: Solve for x
    x = 75,709,872,216.92/245,206.10
  6. Step 6: Final answer
    x = 308,760.15

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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.