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Finding the Fourth Proportional to 368,172.40, 552,265.49 and 115,447.34

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Solution

The fourth proportional to 368,172.40, 552,265.49 and 115,447.34 is: 173,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,172.40 : 552,265.49 = 115,447.34 : x
  2. Step 2: Convert to fraction form
    368,172.40/552,265.49 = 115,447.34/x
  3. Step 3: Cross multiply
    368,172.40x = 552,265.49 × 115,447.34
  4. Step 4: Simplify right side
    368,172.40x = 63,757,581,794.30
  5. Step 5: Solve for x
    x = 63,757,581,794.30/368,172.40
  6. Step 6: Final answer
    x = 173,173.17

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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.