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Finding the Fourth Proportional to 165,531.24, 248,298.48 and 65,715.48

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Solution

The fourth proportional to 165,531.24, 248,298.48 and 65,715.48 is: 98,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,531.24 : 248,298.48 = 65,715.48 : x
  2. Step 2: Convert to fraction form
    165,531.24/248,298.48 = 65,715.48/x
  3. Step 3: Cross multiply
    165,531.24x = 248,298.48 × 65,715.48
  4. Step 4: Simplify right side
    165,531.24x = 16,317,053,796.47
  5. Step 5: Solve for x
    x = 16,317,053,796.47/165,531.24
  6. Step 6: Final answer
    x = 98,573.86

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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.