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Finding the Fourth Proportional to 378,528.83, 567,850.16 and 122,275.88

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Solution

The fourth proportional to 378,528.83, 567,850.16 and 122,275.88 is: 183,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,528.83 : 567,850.16 = 122,275.88 : x
  2. Step 2: Convert to fraction form
    378,528.83/567,850.16 = 122,275.88/x
  3. Step 3: Cross multiply
    378,528.83x = 567,850.16 × 122,275.88
  4. Step 4: Simplify right side
    378,528.83x = 69,434,377,618.02
  5. Step 5: Solve for x
    x = 69,434,377,618.02/378,528.83
  6. Step 6: Final answer
    x = 183,432.20

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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.