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Finding the Fourth Proportional to 68,852.16, 103,276.08 and 19,604.16

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Solution

The fourth proportional to 68,852.16, 103,276.08 and 19,604.16 is: 29,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852.16 : 103,276.08 = 19,604.16 : x
  2. Step 2: Convert to fraction form
    68,852.16/103,276.08 = 19,604.16/x
  3. Step 3: Cross multiply
    68,852.16x = 103,276.08 × 19,604.16
  4. Step 4: Simplify right side
    68,852.16x = 2,024,640,796.49
  5. Step 5: Solve for x
    x = 2,024,640,796.49/68,852.16
  6. Step 6: Final answer
    x = 29,405.62

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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.