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Finding the Fourth Proportional to 69,950.71, 96,508.29 and 42,716.86

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Solution

The fourth proportional to 69,950.71, 96,508.29 and 42,716.86 is: 58,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,950.71 : 96,508.29 = 42,716.86 : x
  2. Step 2: Convert to fraction form
    69,950.71/96,508.29 = 42,716.86/x
  3. Step 3: Cross multiply
    69,950.71x = 96,508.29 × 42,716.86
  4. Step 4: Simplify right side
    69,950.71x = 4,122,531,112.77
  5. Step 5: Solve for x
    x = 4,122,531,112.77/69,950.71
  6. Step 6: Final answer
    x = 58,934.80

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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.