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Finding the Fourth Proportional to 378,367.30, 567,552.97 and 112,130.12

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Solution

The fourth proportional to 378,367.30, 567,552.97 and 112,130.12 is: 168,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,367.30 : 567,552.97 = 112,130.12 : x
  2. Step 2: Convert to fraction form
    378,367.30/567,552.97 = 112,130.12/x
  3. Step 3: Cross multiply
    378,367.30x = 567,552.97 × 112,130.12
  4. Step 4: Simplify right side
    378,367.30x = 63,639,779,794.69
  5. Step 5: Solve for x
    x = 63,639,779,794.69/378,367.30
  6. Step 6: Final answer
    x = 168,195.77

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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.