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Finding the Fourth Proportional to 74,656.45, 103,025.88 and 41,122.45

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Solution

The fourth proportional to 74,656.45, 103,025.88 and 41,122.45 is: 56,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,656.45 : 103,025.88 = 41,122.45 : x
  2. Step 2: Convert to fraction form
    74,656.45/103,025.88 = 41,122.45/x
  3. Step 3: Cross multiply
    74,656.45x = 103,025.88 × 41,122.45
  4. Step 4: Simplify right side
    74,656.45x = 4,236,676,599.01
  5. Step 5: Solve for x
    x = 4,236,676,599.01/74,656.45
  6. Step 6: Final answer
    x = 56,748.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.