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Finding the Fourth Proportional to 378,352.76, 567,531.20 and 112,115.60

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Solution

The fourth proportional to 378,352.76, 567,531.20 and 112,115.60 is: 168,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,352.76 : 567,531.20 = 112,115.60 : x
  2. Step 2: Convert to fraction form
    378,352.76/567,531.20 = 112,115.60/x
  3. Step 3: Cross multiply
    378,352.76x = 567,531.20 × 112,115.60
  4. Step 4: Simplify right side
    378,352.76x = 63,629,101,006.72
  5. Step 5: Solve for x
    x = 63,629,101,006.72/378,352.76
  6. Step 6: Final answer
    x = 168,174.01

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1.5x scale

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.