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Finding the Fourth Proportional to 64,442.82, 88,929.99 and 36,147.90

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Solution

The fourth proportional to 64,442.82, 88,929.99 and 36,147.90 is: 49,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442.82 : 88,929.99 = 36,147.90 : x
  2. Step 2: Convert to fraction form
    64,442.82/88,929.99 = 36,147.90/x
  3. Step 3: Cross multiply
    64,442.82x = 88,929.99 × 36,147.90
  4. Step 4: Simplify right side
    64,442.82x = 3,214,632,385.52
  5. Step 5: Solve for x
    x = 3,214,632,385.52/64,442.82
  6. Step 6: Final answer
    x = 49,883.48

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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.