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Finding the Fourth Proportional to 91,862.54, 137,819.74 and 36,497.42

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Solution

The fourth proportional to 91,862.54, 137,819.74 and 36,497.42 is: 54,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,862.54 : 137,819.74 = 36,497.42 : x
  2. Step 2: Convert to fraction form
    91,862.54/137,819.74 = 36,497.42/x
  3. Step 3: Cross multiply
    91,862.54x = 137,819.74 × 36,497.42
  4. Step 4: Simplify right side
    91,862.54x = 5,030,064,935.07
  5. Step 5: Solve for x
    x = 5,030,064,935.07/91,862.54
  6. Step 6: Final answer
    x = 54,756.43

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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.