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Finding the Fourth Proportional to 63,377.96, 87,436.64 and 40,713.80

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Solution

The fourth proportional to 63,377.96, 87,436.64 and 40,713.80 is: 56,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,377.96 : 87,436.64 = 40,713.80 : x
  2. Step 2: Convert to fraction form
    63,377.96/87,436.64 = 40,713.80/x
  3. Step 3: Cross multiply
    63,377.96x = 87,436.64 × 40,713.80
  4. Step 4: Simplify right side
    63,377.96x = 3,559,877,873.63
  5. Step 5: Solve for x
    x = 3,559,877,873.63/63,377.96
  6. Step 6: Final answer
    x = 56,169.02

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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.