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Finding the Fourth Proportional to 299,359.52, 413,109.96 and 163,396.16

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Solution

The fourth proportional to 299,359.52, 413,109.96 and 163,396.16 is: 225,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,359.52 : 413,109.96 = 163,396.16 : x
  2. Step 2: Convert to fraction form
    299,359.52/413,109.96 = 163,396.16/x
  3. Step 3: Cross multiply
    299,359.52x = 413,109.96 × 163,396.16
  4. Step 4: Simplify right side
    299,359.52x = 67,500,581,121.75
  5. Step 5: Solve for x
    x = 67,500,581,121.75/299,359.52
  6. Step 6: Final answer
    x = 225,483.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.