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Finding the Fourth Proportional to 358,727.49, 538,017.80 and 134,046.45

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Solution

The fourth proportional to 358,727.49, 538,017.80 and 134,046.45 is: 201,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,727.49 : 538,017.80 = 134,046.45 : x
  2. Step 2: Convert to fraction form
    358,727.49/538,017.80 = 134,046.45/x
  3. Step 3: Cross multiply
    358,727.49x = 538,017.80 × 134,046.45
  4. Step 4: Simplify right side
    358,727.49x = 72,119,375,456.58
  5. Step 5: Solve for x
    x = 72,119,375,456.58/358,727.49
  6. Step 6: Final answer
    x = 201,042.23

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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.