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Finding the Fourth Proportional to 358,727.49, 538,167.14 and 118,827.82

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Solution

The fourth proportional to 358,727.49, 538,167.14 and 118,827.82 is: 178,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,727.49 : 538,167.14 = 118,827.82 : x
  2. Step 2: Convert to fraction form
    358,727.49/538,167.14 = 118,827.82/x
  3. Step 3: Cross multiply
    358,727.49x = 538,167.14 × 118,827.82
  4. Step 4: Simplify right side
    358,727.49x = 63,949,228,041.83
  5. Step 5: Solve for x
    x = 63,949,228,041.83/358,727.49
  6. Step 6: Final answer
    x = 178,266.87

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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.