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Finding the Fourth Proportional to 64,422.86, 88,904.48 and 48,261.54

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Solution

The fourth proportional to 64,422.86, 88,904.48 and 48,261.54 is: 66,601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,422.86 : 88,904.48 = 48,261.54 : x
  2. Step 2: Convert to fraction form
    64,422.86/88,904.48 = 48,261.54/x
  3. Step 3: Cross multiply
    64,422.86x = 88,904.48 × 48,261.54
  4. Step 4: Simplify right side
    64,422.86x = 4,290,667,117.70
  5. Step 5: Solve for x
    x = 4,290,667,117.70/64,422.86
  6. Step 6: Final answer
    x = 66,601.62

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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.