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Finding the Fourth Proportional to 77,240.80, 115,879.70 and 32,237.13

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Solution

The fourth proportional to 77,240.80, 115,879.70 and 32,237.13 is: 48,363.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240.80 : 115,879.70 = 32,237.13 : x
  2. Step 2: Convert to fraction form
    77,240.80/115,879.70 = 32,237.13/x
  3. Step 3: Cross multiply
    77,240.80x = 115,879.70 × 32,237.13
  4. Step 4: Simplify right side
    77,240.80x = 3,735,628,792.08
  5. Step 5: Solve for x
    x = 3,735,628,792.08/77,240.80
  6. Step 6: Final answer
    x = 48,363.41

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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.