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Finding the Fourth Proportional to 133,868.28, 184,742.22 and 74,251

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Solution

The fourth proportional to 133,868.28, 184,742.22 and 74,251 is: 102,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,868.28 : 184,742.22 = 74,251 : x
  2. Step 2: Convert to fraction form
    133,868.28/184,742.22 = 74,251/x
  3. Step 3: Cross multiply
    133,868.28x = 184,742.22 × 74,251
  4. Step 4: Simplify right side
    133,868.28x = 13,717,294,577.22
  5. Step 5: Solve for x
    x = 13,717,294,577.22/133,868.28
  6. Step 6: Final answer
    x = 102,468.60

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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.