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Finding the Fourth Proportional to 358,730.50, 538,022.28 and 134,049.46

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Solution

The fourth proportional to 358,730.50, 538,022.28 and 134,049.46 is: 201,046.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,730.50 : 538,022.28 = 134,049.46 : x
  2. Step 2: Convert to fraction form
    358,730.50/538,022.28 = 134,049.46/x
  3. Step 3: Cross multiply
    358,730.50x = 538,022.28 × 134,049.46
  4. Step 4: Simplify right side
    358,730.50x = 72,121,596,101.97
  5. Step 5: Solve for x
    x = 72,121,596,101.97/358,730.50
  6. Step 6: Final answer
    x = 201,046.74

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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.