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Finding the Fourth Proportional to 101,167.96, 139,619.52 and 55,854.68

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Solution

The fourth proportional to 101,167.96, 139,619.52 and 55,854.68 is: 77,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,167.96 : 139,619.52 = 55,854.68 : x
  2. Step 2: Convert to fraction form
    101,167.96/139,619.52 = 55,854.68/x
  3. Step 3: Cross multiply
    101,167.96x = 139,619.52 × 55,854.68
  4. Step 4: Simplify right side
    101,167.96x = 7,798,403,611.35
  5. Step 5: Solve for x
    x = 7,798,403,611.35/101,167.96
  6. Step 6: Final answer
    x = 77,083.73

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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.