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Finding the Fourth Proportional to 404,653.80, 607,053.60 and 168,020.40

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Solution

The fourth proportional to 404,653.80, 607,053.60 and 168,020.40 is: 252,060.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,653.80 : 607,053.60 = 168,020.40 : x
  2. Step 2: Convert to fraction form
    404,653.80/607,053.60 = 168,020.40/x
  3. Step 3: Cross multiply
    404,653.80x = 607,053.60 × 168,020.40
  4. Step 4: Simplify right side
    404,653.80x = 101,997,388,693.44
  5. Step 5: Solve for x
    x = 101,997,388,693.44/404,653.80
  6. Step 6: Final answer
    x = 252,060.87

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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.