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Finding the Fourth Proportional to 98,573.98, 136,028.84 and 62,294.81

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Solution

The fourth proportional to 98,573.98, 136,028.84 and 62,294.81 is: 85,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.98 : 136,028.84 = 62,294.81 : x
  2. Step 2: Convert to fraction form
    98,573.98/136,028.84 = 62,294.81/x
  3. Step 3: Cross multiply
    98,573.98x = 136,028.84 × 62,294.81
  4. Step 4: Simplify right side
    98,573.98x = 8,473,890,770.92
  5. Step 5: Solve for x
    x = 8,473,890,770.92/98,573.98
  6. Step 6: Final answer
    x = 85,964.78

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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.