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Finding the Fourth Proportional to 133,568.73, 184,325.13 and 72,315.54

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Solution

The fourth proportional to 133,568.73, 184,325.13 and 72,315.54 is: 99,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,568.73 : 184,325.13 = 72,315.54 : x
  2. Step 2: Convert to fraction form
    133,568.73/184,325.13 = 72,315.54/x
  3. Step 3: Cross multiply
    133,568.73x = 184,325.13 × 72,315.54
  4. Step 4: Simplify right side
    133,568.73x = 13,329,571,311.52
  5. Step 5: Solve for x
    x = 13,329,571,311.52/133,568.73
  6. Step 6: Final answer
    x = 99,795.60

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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.