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Finding the Fourth Proportional to 264,279.98, 364,706.62 and 143,421.29

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Solution

The fourth proportional to 264,279.98, 364,706.62 and 143,421.29 is: 197,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,279.98 : 364,706.62 = 143,421.29 : x
  2. Step 2: Convert to fraction form
    264,279.98/364,706.62 = 143,421.29/x
  3. Step 3: Cross multiply
    264,279.98x = 364,706.62 × 143,421.29
  4. Step 4: Simplify right side
    264,279.98x = 52,306,693,097.50
  5. Step 5: Solve for x
    x = 52,306,693,097.50/264,279.98
  6. Step 6: Final answer
    x = 197,921.51

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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.