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Finding the Fourth Proportional to 368,351.52, 552,401.68 and 143,694.24

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Solution

The fourth proportional to 368,351.52, 552,401.68 and 143,694.24 is: 215,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,351.52 : 552,401.68 = 143,694.24 : x
  2. Step 2: Convert to fraction form
    368,351.52/552,401.68 = 143,694.24/x
  3. Step 3: Cross multiply
    368,351.52x = 552,401.68 × 143,694.24
  4. Step 4: Simplify right side
    368,351.52x = 79,376,939,582.32
  5. Step 5: Solve for x
    x = 79,376,939,582.32/368,351.52
  6. Step 6: Final answer
    x = 215,492.36

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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.