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Finding the Fourth Proportional to 96,679.67, 133,390.53 and 62,689.50

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Solution

The fourth proportional to 96,679.67, 133,390.53 and 62,689.50 is: 86,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,679.67 : 133,390.53 = 62,689.50 : x
  2. Step 2: Convert to fraction form
    96,679.67/133,390.53 = 62,689.50/x
  3. Step 3: Cross multiply
    96,679.67x = 133,390.53 × 62,689.50
  4. Step 4: Simplify right side
    96,679.67x = 8,362,185,630.44
  5. Step 5: Solve for x
    x = 8,362,185,630.44/96,679.67
  6. Step 6: Final answer
    x = 86,493.74

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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.