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Finding the Fourth Proportional to 405,279.48, 607,591.11 and 168,799.17

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Solution

The fourth proportional to 405,279.48, 607,591.11 and 168,799.17 is: 253,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,279.48 : 607,591.11 = 168,799.17 : x
  2. Step 2: Convert to fraction form
    405,279.48/607,591.11 = 168,799.17/x
  3. Step 3: Cross multiply
    405,279.48x = 607,591.11 × 168,799.17
  4. Step 4: Simplify right side
    405,279.48x = 102,560,875,067.38
  5. Step 5: Solve for x
    x = 102,560,875,067.38/405,279.48
  6. Step 6: Final answer
    x = 253,062.10

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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.