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Finding the Fourth Proportional to 91,808.91, 137,671.80 and 32,646.14

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Solution

The fourth proportional to 91,808.91, 137,671.80 and 32,646.14 is: 48,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808.91 : 137,671.80 = 32,646.14 : x
  2. Step 2: Convert to fraction form
    91,808.91/137,671.80 = 32,646.14/x
  3. Step 3: Cross multiply
    91,808.91x = 137,671.80 × 32,646.14
  4. Step 4: Simplify right side
    91,808.91x = 4,494,452,856.85
  5. Step 5: Solve for x
    x = 4,494,452,856.85/91,808.91
  6. Step 6: Final answer
    x = 48,954.43

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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.