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Finding the Fourth Proportional to 64,370.72, 88,823.04 and 36,076.88

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Solution

The fourth proportional to 64,370.72, 88,823.04 and 36,076.88 is: 49,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,370.72 : 88,823.04 = 36,076.88 : x
  2. Step 2: Convert to fraction form
    64,370.72/88,823.04 = 36,076.88/x
  3. Step 3: Cross multiply
    64,370.72x = 88,823.04 × 36,076.88
  4. Step 4: Simplify right side
    64,370.72x = 3,204,458,155.32
  5. Step 5: Solve for x
    x = 3,204,458,155.32/64,370.72
  6. Step 6: Final answer
    x = 49,781.30

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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.