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Finding the Fourth Proportional to 75,472.59, 104,146.02 and 43,643.51

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Solution

The fourth proportional to 75,472.59, 104,146.02 and 43,643.51 is: 60,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,472.59 : 104,146.02 = 43,643.51 : x
  2. Step 2: Convert to fraction form
    75,472.59/104,146.02 = 43,643.51/x
  3. Step 3: Cross multiply
    75,472.59x = 104,146.02 × 43,643.51
  4. Step 4: Simplify right side
    75,472.59x = 4,545,297,344.60
  5. Step 5: Solve for x
    x = 4,545,297,344.60/75,472.59
  6. Step 6: Final answer
    x = 60,224.48

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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.