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Finding the Fourth Proportional to 73,917.75, 101,886.71 and 57,756.81

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Solution

The fourth proportional to 73,917.75, 101,886.71 and 57,756.81 is: 79,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,917.75 : 101,886.71 = 57,756.81 : x
  2. Step 2: Convert to fraction form
    73,917.75/101,886.71 = 57,756.81/x
  3. Step 3: Cross multiply
    73,917.75x = 101,886.71 × 57,756.81
  4. Step 4: Simplify right side
    73,917.75x = 5,884,651,062.21
  5. Step 5: Solve for x
    x = 5,884,651,062.21/73,917.75
  6. Step 6: Final answer
    x = 79,610.80

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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.