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Finding the Fourth Proportional to 67,858.92, 101,803.14 and 28,395.72

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Solution

The fourth proportional to 67,858.92, 101,803.14 and 28,395.72 is: 42,599.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,858.92 : 101,803.14 = 28,395.72 : x
  2. Step 2: Convert to fraction form
    67,858.92/101,803.14 = 28,395.72/x
  3. Step 3: Cross multiply
    67,858.92x = 101,803.14 × 28,395.72
  4. Step 4: Simplify right side
    67,858.92x = 2,890,773,458.56
  5. Step 5: Solve for x
    x = 2,890,773,458.56/67,858.92
  6. Step 6: Final answer
    x = 42,599.76

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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.