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Finding the Fourth Proportional to 313,113.76, 469,699.20 and 88,477.44

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Solution

The fourth proportional to 313,113.76, 469,699.20 and 88,477.44 is: 132,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,113.76 : 469,699.20 = 88,477.44 : x
  2. Step 2: Convert to fraction form
    313,113.76/469,699.20 = 88,477.44/x
  3. Step 3: Cross multiply
    313,113.76x = 469,699.20 × 88,477.44
  4. Step 4: Simplify right side
    313,113.76x = 41,557,782,786.05
  5. Step 5: Solve for x
    x = 41,557,782,786.05/313,113.76
  6. Step 6: Final answer
    x = 132,724.23

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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.