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Finding the Fourth Proportional to 133,431.50, 184,141.24 and 73,815.50

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Solution

The fourth proportional to 133,431.50, 184,141.24 and 73,815.50 is: 101,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,431.50 : 184,141.24 = 73,815.50 : x
  2. Step 2: Convert to fraction form
    133,431.50/184,141.24 = 73,815.50/x
  3. Step 3: Cross multiply
    133,431.50x = 184,141.24 × 73,815.50
  4. Step 4: Simplify right side
    133,431.50x = 13,592,477,701.22
  5. Step 5: Solve for x
    x = 13,592,477,701.22/133,431.50
  6. Step 6: Final answer
    x = 101,868.58

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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.