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Finding the Fourth Proportional to 81,658.59, 122,373.02 and 64,944.44

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Solution

The fourth proportional to 81,658.59, 122,373.02 and 64,944.44 is: 97,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,658.59 : 122,373.02 = 64,944.44 : x
  2. Step 2: Convert to fraction form
    81,658.59/122,373.02 = 64,944.44/x
  3. Step 3: Cross multiply
    81,658.59x = 122,373.02 × 64,944.44
  4. Step 4: Simplify right side
    81,658.59x = 7,947,447,255.01
  5. Step 5: Solve for x
    x = 7,947,447,255.01/81,658.59
  6. Step 6: Final answer
    x = 97,325.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.