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Finding the Fourth Proportional to 69,398.08, 95,824.56 and 64,090.96

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Solution

The fourth proportional to 69,398.08, 95,824.56 and 64,090.96 is: 88,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,398.08 : 95,824.56 = 64,090.96 : x
  2. Step 2: Convert to fraction form
    69,398.08/95,824.56 = 64,090.96/x
  3. Step 3: Cross multiply
    69,398.08x = 95,824.56 × 64,090.96
  4. Step 4: Simplify right side
    69,398.08x = 6,141,488,041.98
  5. Step 5: Solve for x
    x = 6,141,488,041.98/69,398.08
  6. Step 6: Final answer
    x = 88,496.51

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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.