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Finding the Fourth Proportional to 404,699.80, 607,122.60 and 168,066.40

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Solution

The fourth proportional to 404,699.80, 607,122.60 and 168,066.40 is: 252,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,699.80 : 607,122.60 = 168,066.40 : x
  2. Step 2: Convert to fraction form
    404,699.80/607,122.60 = 168,066.40/x
  3. Step 3: Cross multiply
    404,699.80x = 607,122.60 × 168,066.40
  4. Step 4: Simplify right side
    404,699.80x = 102,036,909,740.64
  5. Step 5: Solve for x
    x = 102,036,909,740.64/404,699.80
  6. Step 6: Final answer
    x = 252,129.87

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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.