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Finding the Fourth Proportional to 378,757.26, 568,038.06 and 112,457.52

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Solution

The fourth proportional to 378,757.26, 568,038.06 and 112,457.52 is: 168,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,757.26 : 568,038.06 = 112,457.52 : x
  2. Step 2: Convert to fraction form
    378,757.26/568,038.06 = 112,457.52/x
  3. Step 3: Cross multiply
    378,757.26x = 568,038.06 × 112,457.52
  4. Step 4: Simplify right side
    378,757.26x = 63,880,151,493.21
  5. Step 5: Solve for x
    x = 63,880,151,493.21/378,757.26
  6. Step 6: Final answer
    x = 168,657.23

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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.