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Finding the Fourth Proportional to 64,206.72, 88,611.12 and 35,921.52

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Solution

The fourth proportional to 64,206.72, 88,611.12 and 35,921.52 is: 49,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,206.72 : 88,611.12 = 35,921.52 : x
  2. Step 2: Convert to fraction form
    64,206.72/88,611.12 = 35,921.52/x
  3. Step 3: Cross multiply
    64,206.72x = 88,611.12 × 35,921.52
  4. Step 4: Simplify right side
    64,206.72x = 3,183,046,119.30
  5. Step 5: Solve for x
    x = 3,183,046,119.30/64,206.72
  6. Step 6: Final answer
    x = 49,574.97

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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.