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Finding the Fourth Proportional to 68,049.98, 102,052.29 and 28,599.74

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Solution

The fourth proportional to 68,049.98, 102,052.29 and 28,599.74 is: 42,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,049.98 : 102,052.29 = 28,599.74 : x
  2. Step 2: Convert to fraction form
    68,049.98/102,052.29 = 28,599.74/x
  3. Step 3: Cross multiply
    68,049.98x = 102,052.29 × 28,599.74
  4. Step 4: Simplify right side
    68,049.98x = 2,918,668,960.40
  5. Step 5: Solve for x
    x = 2,918,668,960.40/68,049.98
  6. Step 6: Final answer
    x = 42,890.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.