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Finding the Fourth Proportional to 75,961.32, 104,758.50 and 63,256.56

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Solution

The fourth proportional to 75,961.32, 104,758.50 and 63,256.56 is: 87,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,961.32 : 104,758.50 = 63,256.56 : x
  2. Step 2: Convert to fraction form
    75,961.32/104,758.50 = 63,256.56/x
  3. Step 3: Cross multiply
    75,961.32x = 104,758.50 × 63,256.56
  4. Step 4: Simplify right side
    75,961.32x = 6,626,662,340.76
  5. Step 5: Solve for x
    x = 6,626,662,340.76/75,961.32
  6. Step 6: Final answer
    x = 87,237.32

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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.