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Finding the Fourth Proportional to 358,730.71, 538,127.01 and 92,488.97

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Solution

The fourth proportional to 358,730.71, 538,127.01 and 92,488.97 is: 138,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,730.71 : 538,127.01 = 92,488.97 : x
  2. Step 2: Convert to fraction form
    358,730.71/538,127.01 = 92,488.97/x
  3. Step 3: Cross multiply
    358,730.71x = 538,127.01 × 92,488.97
  4. Step 4: Simplify right side
    358,730.71x = 49,770,814,229.40
  5. Step 5: Solve for x
    x = 49,770,814,229.40/358,730.71
  6. Step 6: Final answer
    x = 138,741.44

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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.