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Finding the Fourth Proportional to 68,761.62, 103,010.67 and 46,536.66

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Solution

The fourth proportional to 68,761.62, 103,010.67 and 46,536.66 is: 69,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,761.62 : 103,010.67 = 46,536.66 : x
  2. Step 2: Convert to fraction form
    68,761.62/103,010.67 = 46,536.66/x
  3. Step 3: Cross multiply
    68,761.62x = 103,010.67 × 46,536.66
  4. Step 4: Simplify right side
    68,761.62x = 4,793,772,526.16
  5. Step 5: Solve for x
    x = 4,793,772,526.16/68,761.62
  6. Step 6: Final answer
    x = 69,715.82

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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.