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Finding the Fourth Proportional to 63,393.82, 87,463.74 and 42,176.68

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Solution

The fourth proportional to 63,393.82, 87,463.74 and 42,176.68 is: 58,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,393.82 : 87,463.74 = 42,176.68 : x
  2. Step 2: Convert to fraction form
    63,393.82/87,463.74 = 42,176.68/x
  3. Step 3: Cross multiply
    63,393.82x = 87,463.74 × 42,176.68
  4. Step 4: Simplify right side
    63,393.82x = 3,688,930,173.58
  5. Step 5: Solve for x
    x = 3,688,930,173.58/63,393.82
  6. Step 6: Final answer
    x = 58,190.69

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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.