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Finding the Fourth Proportional to 75,273.75, 103,893.98 and 45,065.81

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Solution

The fourth proportional to 75,273.75, 103,893.98 and 45,065.81 is: 62,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,273.75 : 103,893.98 = 45,065.81 : x
  2. Step 2: Convert to fraction form
    75,273.75/103,893.98 = 45,065.81/x
  3. Step 3: Cross multiply
    75,273.75x = 103,893.98 × 45,065.81
  4. Step 4: Simplify right side
    75,273.75x = 4,682,066,397.23
  5. Step 5: Solve for x
    x = 4,682,066,397.23/75,273.75
  6. Step 6: Final answer
    x = 62,200.52

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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.