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Finding the Fourth Proportional to 104,199.92, 143,787.38 and 61,174.88

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Solution

The fourth proportional to 104,199.92, 143,787.38 and 61,174.88 is: 84,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,199.92 : 143,787.38 = 61,174.88 : x
  2. Step 2: Convert to fraction form
    104,199.92/143,787.38 = 61,174.88/x
  3. Step 3: Cross multiply
    104,199.92x = 143,787.38 × 61,174.88
  4. Step 4: Simplify right side
    104,199.92x = 8,796,175,717.01
  5. Step 5: Solve for x
    x = 8,796,175,717.01/104,199.92
  6. Step 6: Final answer
    x = 84,416.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.