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Finding the Fourth Proportional to 368,568.97, 552,635.29 and 143,666.85

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Solution

The fourth proportional to 368,568.97, 552,635.29 and 143,666.85 is: 215,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,568.97 : 552,635.29 = 143,666.85 : x
  2. Step 2: Convert to fraction form
    368,568.97/552,635.29 = 143,666.85/x
  3. Step 3: Cross multiply
    368,568.97x = 552,635.29 × 143,666.85
  4. Step 4: Simplify right side
    368,568.97x = 79,395,371,313.14
  5. Step 5: Solve for x
    x = 79,395,371,313.14/368,568.97
  6. Step 6: Final answer
    x = 215,415.24

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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.