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Finding the Fourth Proportional to 74,652.66, 103,023.03 and 40,662.17

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Solution

The fourth proportional to 74,652.66, 103,023.03 and 40,662.17 is: 56,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,652.66 : 103,023.03 = 40,662.17 : x
  2. Step 2: Convert to fraction form
    74,652.66/103,023.03 = 40,662.17/x
  3. Step 3: Cross multiply
    74,652.66x = 103,023.03 × 40,662.17
  4. Step 4: Simplify right side
    74,652.66x = 4,189,139,241.35
  5. Step 5: Solve for x
    x = 4,189,139,241.35/74,652.66
  6. Step 6: Final answer
    x = 56,115.07

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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.