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Finding the Fourth Proportional to 63,990.54, 88,306.34 and 35,310.46

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Solution

The fourth proportional to 63,990.54, 88,306.34 and 35,310.46 is: 48,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,990.54 : 88,306.34 = 35,310.46 : x
  2. Step 2: Convert to fraction form
    63,990.54/88,306.34 = 35,310.46/x
  3. Step 3: Cross multiply
    63,990.54x = 88,306.34 × 35,310.46
  4. Step 4: Simplify right side
    63,990.54x = 3,118,137,486.32
  5. Step 5: Solve for x
    x = 3,118,137,486.32/63,990.54
  6. Step 6: Final answer
    x = 48,728.10

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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.