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Finding the Fourth Proportional to 378,644.22, 567,869.13 and 112,341.74

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Solution

The fourth proportional to 378,644.22, 567,869.13 and 112,341.74 is: 168,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,644.22 : 567,869.13 = 112,341.74 : x
  2. Step 2: Convert to fraction form
    378,644.22/567,869.13 = 112,341.74/x
  3. Step 3: Cross multiply
    378,644.22x = 567,869.13 × 112,341.74
  4. Step 4: Simplify right side
    378,644.22x = 63,795,403,317.14
  5. Step 5: Solve for x
    x = 63,795,403,317.14/378,644.22
  6. Step 6: Final answer
    x = 168,483.76

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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.