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Finding the Fourth Proportional to 388,069.72, 582,175.08 and 160,365.88

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Solution

The fourth proportional to 388,069.72, 582,175.08 and 160,365.88 is: 240,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,069.72 : 582,175.08 = 160,365.88 : x
  2. Step 2: Convert to fraction form
    388,069.72/582,175.08 = 160,365.88/x
  3. Step 3: Cross multiply
    388,069.72x = 582,175.08 × 160,365.88
  4. Step 4: Simplify right side
    388,069.72x = 93,361,019,018.27
  5. Step 5: Solve for x
    x = 93,361,019,018.27/388,069.72
  6. Step 6: Final answer
    x = 240,577.95

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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.