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Finding the Fourth Proportional to 75,212.76, 112,822.26 and 62,040.60

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Solution

The fourth proportional to 75,212.76, 112,822.26 and 62,040.60 is: 93,063.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,212.76 : 112,822.26 = 62,040.60 : x
  2. Step 2: Convert to fraction form
    75,212.76/112,822.26 = 62,040.60/x
  3. Step 3: Cross multiply
    75,212.76x = 112,822.26 × 62,040.60
  4. Step 4: Simplify right side
    75,212.76x = 6,999,560,703.76
  5. Step 5: Solve for x
    x = 6,999,560,703.76/75,212.76
  6. Step 6: Final answer
    x = 93,063.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.