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Finding the Fourth Proportional to 404,031.72, 605,989.23 and 123,473.64

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Solution

The fourth proportional to 404,031.72, 605,989.23 and 123,473.64 is: 185,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,031.72 : 605,989.23 = 123,473.64 : x
  2. Step 2: Convert to fraction form
    404,031.72/605,989.23 = 123,473.64/x
  3. Step 3: Cross multiply
    404,031.72x = 605,989.23 × 123,473.64
  4. Step 4: Simplify right side
    404,031.72x = 74,823,696,028.90
  5. Step 5: Solve for x
    x = 74,823,696,028.90/404,031.72
  6. Step 6: Final answer
    x = 185,192.63

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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.