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Finding the Fourth Proportional to 75,153.48, 112,551.28 and 43,496.88

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Solution

The fourth proportional to 75,153.48, 112,551.28 and 43,496.88 is: 65,141.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.48 : 112,551.28 = 43,496.88 : x
  2. Step 2: Convert to fraction form
    75,153.48/112,551.28 = 43,496.88/x
  3. Step 3: Cross multiply
    75,153.48x = 112,551.28 × 43,496.88
  4. Step 4: Simplify right side
    75,153.48x = 4,895,629,520.01
  5. Step 5: Solve for x
    x = 4,895,629,520.01/75,153.48
  6. Step 6: Final answer
    x = 65,141.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.