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Finding the Fourth Proportional to 132,620, 183,015.96 and 73,004

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Solution

The fourth proportional to 132,620, 183,015.96 and 73,004 is: 100,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,620 : 183,015.96 = 73,004 : x
  2. Step 2: Convert to fraction form
    132,620/183,015.96 = 73,004/x
  3. Step 3: Cross multiply
    132,620x = 183,015.96 × 73,004
  4. Step 4: Simplify right side
    132,620x = 13,360,897,143.84
  5. Step 5: Solve for x
    x = 13,360,897,143.84/132,620
  6. Step 6: Final answer
    x = 100,745.72

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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.