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Finding the Fourth Proportional to 63,173.51, 87,178.78 and 34,493.08

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Solution

The fourth proportional to 63,173.51, 87,178.78 and 34,493.08 is: 47,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,173.51 : 87,178.78 = 34,493.08 : x
  2. Step 2: Convert to fraction form
    63,173.51/87,178.78 = 34,493.08/x
  3. Step 3: Cross multiply
    63,173.51x = 87,178.78 × 34,493.08
  4. Step 4: Simplify right side
    63,173.51x = 3,007,065,037.76
  5. Step 5: Solve for x
    x = 3,007,065,037.76/63,173.51
  6. Step 6: Final answer
    x = 47,600.09

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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.