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Finding the Fourth Proportional to 92,100.62, 138,150.93 and 60,928.58

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Solution

The fourth proportional to 92,100.62, 138,150.93 and 60,928.58 is: 91,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,100.62 : 138,150.93 = 60,928.58 : x
  2. Step 2: Convert to fraction form
    92,100.62/138,150.93 = 60,928.58/x
  3. Step 3: Cross multiply
    92,100.62x = 138,150.93 × 60,928.58
  4. Step 4: Simplify right side
    92,100.62x = 8,417,339,990.58
  5. Step 5: Solve for x
    x = 8,417,339,990.58/92,100.62
  6. Step 6: Final answer
    x = 91,392.87

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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.