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Finding the Fourth Proportional to 207,659.04, 311,488.56 and 57,893.28

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Solution

The fourth proportional to 207,659.04, 311,488.56 and 57,893.28 is: 86,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,659.04 : 311,488.56 = 57,893.28 : x
  2. Step 2: Convert to fraction form
    207,659.04/311,488.56 = 57,893.28/x
  3. Step 3: Cross multiply
    207,659.04x = 311,488.56 × 57,893.28
  4. Step 4: Simplify right side
    207,659.04x = 18,033,094,420.88
  5. Step 5: Solve for x
    x = 18,033,094,420.88/207,659.04
  6. Step 6: Final answer
    x = 86,839.92

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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.