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Finding the Fourth Proportional to 307,522.52, 424,381.16 and 173,386.52

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Solution

The fourth proportional to 307,522.52, 424,381.16 and 173,386.52 is: 239,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,522.52 : 424,381.16 = 173,386.52 : x
  2. Step 2: Convert to fraction form
    307,522.52/424,381.16 = 173,386.52/x
  3. Step 3: Cross multiply
    307,522.52x = 424,381.16 × 173,386.52
  4. Step 4: Simplify right side
    307,522.52x = 73,581,972,485.96
  5. Step 5: Solve for x
    x = 73,581,972,485.96/307,522.52
  6. Step 6: Final answer
    x = 239,273.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.