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Finding the Fourth Proportional to 73,434.81, 101,340.66 and 39,900.81

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Solution

The fourth proportional to 73,434.81, 101,340.66 and 39,900.81 is: 55,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,434.81 : 101,340.66 = 39,900.81 : x
  2. Step 2: Convert to fraction form
    73,434.81/101,340.66 = 39,900.81/x
  3. Step 3: Cross multiply
    73,434.81x = 101,340.66 × 39,900.81
  4. Step 4: Simplify right side
    73,434.81x = 4,043,574,419.93
  5. Step 5: Solve for x
    x = 4,043,574,419.93/73,434.81
  6. Step 6: Final answer
    x = 55,063.46

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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.