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Finding the Fourth Proportional to 63,151.65, 87,150 and 34,857.36

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Solution

The fourth proportional to 63,151.65, 87,150 and 34,857.36 is: 48,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,151.65 : 87,150 = 34,857.36 : x
  2. Step 2: Convert to fraction form
    63,151.65/87,150 = 34,857.36/x
  3. Step 3: Cross multiply
    63,151.65x = 87,150 × 34,857.36
  4. Step 4: Simplify right side
    63,151.65x = 3,037,818,924
  5. Step 5: Solve for x
    x = 3,037,818,924/63,151.65
  6. Step 6: Final answer
    x = 48,103.56

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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.