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Finding the Fourth Proportional to 60,346.85, 90,579.87 and 45,301.66

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Solution

The fourth proportional to 60,346.85, 90,579.87 and 45,301.66 is: 67,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,346.85 : 90,579.87 = 45,301.66 : x
  2. Step 2: Convert to fraction form
    60,346.85/90,579.87 = 45,301.66/x
  3. Step 3: Cross multiply
    60,346.85x = 90,579.87 × 45,301.66
  4. Step 4: Simplify right side
    60,346.85x = 4,103,418,268.33
  5. Step 5: Solve for x
    x = 4,103,418,268.33/60,346.85
  6. Step 6: Final answer
    x = 67,997.22

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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.