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Finding the Fourth Proportional to 60,347.85, 90,581.37 and 45,302.66

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Solution

The fourth proportional to 60,347.85, 90,581.37 and 45,302.66 is: 67,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,347.85 : 90,581.37 = 45,302.66 : x
  2. Step 2: Convert to fraction form
    60,347.85/90,581.37 = 45,302.66/x
  3. Step 3: Cross multiply
    60,347.85x = 90,581.37 × 45,302.66
  4. Step 4: Simplify right side
    60,347.85x = 4,103,577,007.44
  5. Step 5: Solve for x
    x = 4,103,577,007.44/60,347.85
  6. Step 6: Final answer
    x = 67,998.73

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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.