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Finding the Fourth Proportional to 60,782.80, 90,874.49 and 51,526.12

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Solution

The fourth proportional to 60,782.80, 90,874.49 and 51,526.12 is: 77,035.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,782.80 : 90,874.49 = 51,526.12 : x
  2. Step 2: Convert to fraction form
    60,782.80/90,874.49 = 51,526.12/x
  3. Step 3: Cross multiply
    60,782.80x = 90,874.49 × 51,526.12
  4. Step 4: Simplify right side
    60,782.80x = 4,682,409,876.68
  5. Step 5: Solve for x
    x = 4,682,409,876.68/60,782.80
  6. Step 6: Final answer
    x = 77,035.11

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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.