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Finding the Fourth Proportional to 75,908.34, 104,734.62 and 45,687.24

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Solution

The fourth proportional to 75,908.34, 104,734.62 and 45,687.24 is: 63,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,908.34 : 104,734.62 = 45,687.24 : x
  2. Step 2: Convert to fraction form
    75,908.34/104,734.62 = 45,687.24/x
  3. Step 3: Cross multiply
    75,908.34x = 104,734.62 × 45,687.24
  4. Step 4: Simplify right side
    75,908.34x = 4,785,035,720.25
  5. Step 5: Solve for x
    x = 4,785,035,720.25/75,908.34
  6. Step 6: Final answer
    x = 63,037.02

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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.