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Finding the Fourth Proportional to 91,698.57, 137,568.60 and 32,534.31

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Solution

The fourth proportional to 91,698.57, 137,568.60 and 32,534.31 is: 48,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.57 : 137,568.60 = 32,534.31 : x
  2. Step 2: Convert to fraction form
    91,698.57/137,568.60 = 32,534.31/x
  3. Step 3: Cross multiply
    91,698.57x = 137,568.60 × 32,534.31
  4. Step 4: Simplify right side
    91,698.57x = 4,475,699,478.67
  5. Step 5: Solve for x
    x = 4,475,699,478.67/91,698.57
  6. Step 6: Final answer
    x = 48,808.83

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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.