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Finding the Fourth Proportional to 64,354.32, 88,812.48 and 36,069.12

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Solution

The fourth proportional to 64,354.32, 88,812.48 and 36,069.12 is: 49,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.32 : 88,812.48 = 36,069.12 : x
  2. Step 2: Convert to fraction form
    64,354.32/88,812.48 = 36,069.12/x
  3. Step 3: Cross multiply
    64,354.32x = 88,812.48 × 36,069.12
  4. Step 4: Simplify right side
    64,354.32x = 3,203,387,998.62
  5. Step 5: Solve for x
    x = 3,203,387,998.62/64,354.32
  6. Step 6: Final answer
    x = 49,777.36

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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.