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Finding the Fourth Proportional to 133,812, 184,660.56 and 74,196

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Solution

The fourth proportional to 133,812, 184,660.56 and 74,196 is: 102,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,812 : 184,660.56 = 74,196 : x
  2. Step 2: Convert to fraction form
    133,812/184,660.56 = 74,196/x
  3. Step 3: Cross multiply
    133,812x = 184,660.56 × 74,196
  4. Step 4: Simplify right side
    133,812x = 13,701,074,909.76
  5. Step 5: Solve for x
    x = 13,701,074,909.76/133,812
  6. Step 6: Final answer
    x = 102,390.48

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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.