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Finding the Fourth Proportional to 133,631.80, 184,411.80 and 73,201.92

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Solution

The fourth proportional to 133,631.80, 184,411.80 and 73,201.92 is: 101,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,631.80 : 184,411.80 = 73,201.92 : x
  2. Step 2: Convert to fraction form
    133,631.80/184,411.80 = 73,201.92/x
  3. Step 3: Cross multiply
    133,631.80x = 184,411.80 × 73,201.92
  4. Step 4: Simplify right side
    133,631.80x = 13,499,297,830.66
  5. Step 5: Solve for x
    x = 13,499,297,830.66/133,631.80
  6. Step 6: Final answer
    x = 101,018.60

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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.