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Finding the Fourth Proportional to 91,732.84, 137,590.02 and 25,179.68

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Solution

The fourth proportional to 91,732.84, 137,590.02 and 25,179.68 is: 37,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.84 : 137,590.02 = 25,179.68 : x
  2. Step 2: Convert to fraction form
    91,732.84/137,590.02 = 25,179.68/x
  3. Step 3: Cross multiply
    91,732.84x = 137,590.02 × 25,179.68
  4. Step 4: Simplify right side
    91,732.84x = 3,464,472,674.79
  5. Step 5: Solve for x
    x = 3,464,472,674.79/91,732.84
  6. Step 6: Final answer
    x = 37,766.98

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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.