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Finding the Fourth Proportional to 57,188.66, 85,794.45 and 19,750.10

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Solution

The fourth proportional to 57,188.66, 85,794.45 and 19,750.10 is: 29,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,188.66 : 85,794.45 = 19,750.10 : x
  2. Step 2: Convert to fraction form
    57,188.66/85,794.45 = 19,750.10/x
  3. Step 3: Cross multiply
    57,188.66x = 85,794.45 × 19,750.10
  4. Step 4: Simplify right side
    57,188.66x = 1,694,448,868.19
  5. Step 5: Solve for x
    x = 1,694,448,868.19/57,188.66
  6. Step 6: Final answer
    x = 29,629.11

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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.