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Finding the Fourth Proportional to 507,668.55, 761,249.28 and 166,067.38

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Solution

The fourth proportional to 507,668.55, 761,249.28 and 166,067.38 is: 249,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,668.55 : 761,249.28 = 166,067.38 : x
  2. Step 2: Convert to fraction form
    507,668.55/761,249.28 = 166,067.38/x
  3. Step 3: Cross multiply
    507,668.55x = 761,249.28 × 166,067.38
  4. Step 4: Simplify right side
    507,668.55x = 126,418,675,359.61
  5. Step 5: Solve for x
    x = 126,418,675,359.61/507,668.55
  6. Step 6: Final answer
    x = 249,018.14

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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.