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Finding the Fourth Proportional to 67,396.80, 101,095.20 and 61,710.60

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Solution

The fourth proportional to 67,396.80, 101,095.20 and 61,710.60 is: 92,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,396.80 : 101,095.20 = 61,710.60 : x
  2. Step 2: Convert to fraction form
    67,396.80/101,095.20 = 61,710.60/x
  3. Step 3: Cross multiply
    67,396.80x = 101,095.20 × 61,710.60
  4. Step 4: Simplify right side
    67,396.80x = 6,238,645,449.12
  5. Step 5: Solve for x
    x = 6,238,645,449.12/67,396.80
  6. Step 6: Final answer
    x = 92,565.90

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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.