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Finding the Fourth Proportional to 68,550.16, 102,803.22 and 21,792.10

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Solution

The fourth proportional to 68,550.16, 102,803.22 and 21,792.10 is: 32,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,550.16 : 102,803.22 = 21,792.10 : x
  2. Step 2: Convert to fraction form
    68,550.16/102,803.22 = 21,792.10/x
  3. Step 3: Cross multiply
    68,550.16x = 102,803.22 × 21,792.10
  4. Step 4: Simplify right side
    68,550.16x = 2,240,298,050.56
  5. Step 5: Solve for x
    x = 2,240,298,050.56/68,550.16
  6. Step 6: Final answer
    x = 32,681.15

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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.