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Finding the Fourth Proportional to 71,775.72, 99,053.74 and 41,562.36

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Solution

The fourth proportional to 71,775.72, 99,053.74 and 41,562.36 is: 57,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,775.72 : 99,053.74 = 41,562.36 : x
  2. Step 2: Convert to fraction form
    71,775.72/99,053.74 = 41,562.36/x
  3. Step 3: Cross multiply
    71,775.72x = 99,053.74 × 41,562.36
  4. Step 4: Simplify right side
    71,775.72x = 4,116,906,725.87
  5. Step 5: Solve for x
    x = 4,116,906,725.87/71,775.72
  6. Step 6: Final answer
    x = 57,357.93

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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.