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Finding the Fourth Proportional to 205,359.63, 283,396.28 and 115,935.63

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Solution

The fourth proportional to 205,359.63, 283,396.28 and 115,935.63 is: 159,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,359.63 : 283,396.28 = 115,935.63 : x
  2. Step 2: Convert to fraction form
    205,359.63/283,396.28 = 115,935.63/x
  3. Step 3: Cross multiply
    205,359.63x = 283,396.28 × 115,935.63
  4. Step 4: Simplify right side
    205,359.63x = 32,855,726,261.46
  5. Step 5: Solve for x
    x = 32,855,726,261.46/205,359.63
  6. Step 6: Final answer
    x = 159,991.16

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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.