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Finding the Fourth Proportional to 264,390.71, 364,857.03 and 143,531.78

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Solution

The fourth proportional to 264,390.71, 364,857.03 and 143,531.78 is: 198,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,390.71 : 364,857.03 = 143,531.78 : x
  2. Step 2: Convert to fraction form
    264,390.71/364,857.03 = 143,531.78/x
  3. Step 3: Cross multiply
    264,390.71x = 364,857.03 × 143,531.78
  4. Step 4: Simplify right side
    264,390.71x = 52,368,577,137.13
  5. Step 5: Solve for x
    x = 52,368,577,137.13/264,390.71
  6. Step 6: Final answer
    x = 198,072.69

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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.