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Finding the Fourth Proportional to 44,137.47, 66,168.87 and 19,158.74

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Solution

The fourth proportional to 44,137.47, 66,168.87 and 19,158.74 is: 28,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,137.47 : 66,168.87 = 19,158.74 : x
  2. Step 2: Convert to fraction form
    44,137.47/66,168.87 = 19,158.74/x
  3. Step 3: Cross multiply
    44,137.47x = 66,168.87 × 19,158.74
  4. Step 4: Simplify right side
    44,137.47x = 1,267,712,176.42
  5. Step 5: Solve for x
    x = 1,267,712,176.42/44,137.47
  6. Step 6: Final answer
    x = 28,721.90

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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.