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Finding the Fourth Proportional to 121,396.61, 182,116.44 and 37,154.91

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Solution

The fourth proportional to 121,396.61, 182,116.44 and 37,154.91 is: 55,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,396.61 : 182,116.44 = 37,154.91 : x
  2. Step 2: Convert to fraction form
    121,396.61/182,116.44 = 37,154.91/x
  3. Step 3: Cross multiply
    121,396.61x = 182,116.44 × 37,154.91
  4. Step 4: Simplify right side
    121,396.61x = 6,766,519,907.17
  5. Step 5: Solve for x
    x = 6,766,519,907.17/121,396.61
  6. Step 6: Final answer
    x = 55,738.95

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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.