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Finding the Fourth Proportional to 404,654.80, 607,055.10 and 168,021.40

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Solution

The fourth proportional to 404,654.80, 607,055.10 and 168,021.40 is: 252,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,654.80 : 607,055.10 = 168,021.40 : x
  2. Step 2: Convert to fraction form
    404,654.80/607,055.10 = 168,021.40/x
  3. Step 3: Cross multiply
    404,654.80x = 607,055.10 × 168,021.40
  4. Step 4: Simplify right side
    404,654.80x = 101,998,247,779.14
  5. Step 5: Solve for x
    x = 101,998,247,779.14/404,654.80
  6. Step 6: Final answer
    x = 252,062.37

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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.