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Finding the Fourth Proportional to 92,177.44, 138,137.56 and 69,669.56

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Solution

The fourth proportional to 92,177.44, 138,137.56 and 69,669.56 is: 104,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,177.44 : 138,137.56 = 69,669.56 : x
  2. Step 2: Convert to fraction form
    92,177.44/138,137.56 = 69,669.56/x
  3. Step 3: Cross multiply
    92,177.44x = 138,137.56 × 69,669.56
  4. Step 4: Simplify right side
    92,177.44x = 9,623,983,195.84
  5. Step 5: Solve for x
    x = 9,623,983,195.84/92,177.44
  6. Step 6: Final answer
    x = 104,407.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.