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Finding the Fourth Proportional to 64,455.96, 88,946.82 and 36,163.20

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Solution

The fourth proportional to 64,455.96, 88,946.82 and 36,163.20 is: 49,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.96 : 88,946.82 = 36,163.20 : x
  2. Step 2: Convert to fraction form
    64,455.96/88,946.82 = 36,163.20/x
  3. Step 3: Cross multiply
    64,455.96x = 88,946.82 × 36,163.20
  4. Step 4: Simplify right side
    64,455.96x = 3,216,601,641.02
  5. Step 5: Solve for x
    x = 3,216,601,641.02/64,455.96
  6. Step 6: Final answer
    x = 49,903.87

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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.