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Finding the Fourth Proportional to 63,998.91, 88,217.93 and 43,820.90

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Solution

The fourth proportional to 63,998.91, 88,217.93 and 43,820.90 is: 60,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,998.91 : 88,217.93 = 43,820.90 : x
  2. Step 2: Convert to fraction form
    63,998.91/88,217.93 = 43,820.90/x
  3. Step 3: Cross multiply
    63,998.91x = 88,217.93 × 43,820.90
  4. Step 4: Simplify right side
    63,998.91x = 3,865,788,428.54
  5. Step 5: Solve for x
    x = 3,865,788,428.54/63,998.91
  6. Step 6: Final answer
    x = 60,403.98

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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.