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Finding the Fourth Proportional to 73,447.31, 101,388.30 and 49,606.28

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Solution

The fourth proportional to 73,447.31, 101,388.30 and 49,606.28 is: 68,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,447.31 : 101,388.30 = 49,606.28 : x
  2. Step 2: Convert to fraction form
    73,447.31/101,388.30 = 49,606.28/x
  3. Step 3: Cross multiply
    73,447.31x = 101,388.30 × 49,606.28
  4. Step 4: Simplify right side
    73,447.31x = 5,029,495,891.58
  5. Step 5: Solve for x
    x = 5,029,495,891.58/73,447.31
  6. Step 6: Final answer
    x = 68,477.60

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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.