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Finding the Fourth Proportional to 75,326, 103,910.64 and 44,681.27

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Solution

The fourth proportional to 75,326, 103,910.64 and 44,681.27 is: 61,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,326 : 103,910.64 = 44,681.27 : x
  2. Step 2: Convert to fraction form
    75,326/103,910.64 = 44,681.27/x
  3. Step 3: Cross multiply
    75,326x = 103,910.64 × 44,681.27
  4. Step 4: Simplify right side
    75,326x = 4,642,859,361.71
  5. Step 5: Solve for x
    x = 4,642,859,361.71/75,326
  6. Step 6: Final answer
    x = 61,636.88

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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.