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Finding the Fourth Proportional to 404,814.10, 607,221.15 and 168,034.90

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Solution

The fourth proportional to 404,814.10, 607,221.15 and 168,034.90 is: 252,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,814.10 : 607,221.15 = 168,034.90 : x
  2. Step 2: Convert to fraction form
    404,814.10/607,221.15 = 168,034.90/x
  3. Step 3: Cross multiply
    404,814.10x = 607,221.15 × 168,034.90
  4. Step 4: Simplify right side
    404,814.10x = 102,034,345,218.14
  5. Step 5: Solve for x
    x = 102,034,345,218.14/404,814.10
  6. Step 6: Final answer
    x = 252,052.35

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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.