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Finding the Fourth Proportional to 75,513, 104,207.94 and 41,985.48

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Solution

The fourth proportional to 75,513, 104,207.94 and 41,985.48 is: 57,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,513 : 104,207.94 = 41,985.48 : x
  2. Step 2: Convert to fraction form
    75,513/104,207.94 = 41,985.48/x
  3. Step 3: Cross multiply
    75,513x = 104,207.94 × 41,985.48
  4. Step 4: Simplify right side
    75,513x = 4,375,220,380.71
  5. Step 5: Solve for x
    x = 4,375,220,380.71/75,513
  6. Step 6: Final answer
    x = 57,939.96

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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.