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Finding the Fourth Proportional to 264,312.78, 364,755.14 and 143,455.52

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Solution

The fourth proportional to 264,312.78, 364,755.14 and 143,455.52 is: 197,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,312.78 : 364,755.14 = 143,455.52 : x
  2. Step 2: Convert to fraction form
    264,312.78/364,755.14 = 143,455.52/x
  3. Step 3: Cross multiply
    264,312.78x = 364,755.14 × 143,455.52
  4. Step 4: Simplify right side
    264,312.78x = 52,326,138,281.37
  5. Step 5: Solve for x
    x = 52,326,138,281.37/264,312.78
  6. Step 6: Final answer
    x = 197,970.52

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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.