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Finding the Fourth Proportional to 92,135.88, 138,059.84 and 64,110.69

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Solution

The fourth proportional to 92,135.88, 138,059.84 and 64,110.69 is: 96,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,135.88 : 138,059.84 = 64,110.69 : x
  2. Step 2: Convert to fraction form
    92,135.88/138,059.84 = 64,110.69/x
  3. Step 3: Cross multiply
    92,135.88x = 138,059.84 × 64,110.69
  4. Step 4: Simplify right side
    92,135.88x = 8,851,111,763.97
  5. Step 5: Solve for x
    x = 8,851,111,763.97/92,135.88
  6. Step 6: Final answer
    x = 96,065.85

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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.