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Finding the Fourth Proportional to 205,592.99, 307,642.13 and 169,720.71

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Solution

The fourth proportional to 205,592.99, 307,642.13 and 169,720.71 is: 253,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,592.99 : 307,642.13 = 169,720.71 : x
  2. Step 2: Convert to fraction form
    205,592.99/307,642.13 = 169,720.71/x
  3. Step 3: Cross multiply
    205,592.99x = 307,642.13 × 169,720.71
  4. Step 4: Simplify right side
    205,592.99x = 52,213,239,880.91
  5. Step 5: Solve for x
    x = 52,213,239,880.91/205,592.99
  6. Step 6: Final answer
    x = 253,964.11

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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.