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Finding the Fourth Proportional to 404,236.65, 606,356.78 and 104,695.95

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Solution

The fourth proportional to 404,236.65, 606,356.78 and 104,695.95 is: 157,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,236.65 : 606,356.78 = 104,695.95 : x
  2. Step 2: Convert to fraction form
    404,236.65/606,356.78 = 104,695.95/x
  3. Step 3: Cross multiply
    404,236.65x = 606,356.78 × 104,695.95
  4. Step 4: Simplify right side
    404,236.65x = 63,483,098,597.56
  5. Step 5: Solve for x
    x = 63,483,098,597.56/404,236.65
  6. Step 6: Final answer
    x = 157,044.39

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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.