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Finding the Fourth Proportional to 358,683.20, 538,057.80 and 92,444.70

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Solution

The fourth proportional to 358,683.20, 538,057.80 and 92,444.70 is: 138,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,683.20 : 538,057.80 = 92,444.70 : x
  2. Step 2: Convert to fraction form
    358,683.20/538,057.80 = 92,444.70/x
  3. Step 3: Cross multiply
    358,683.20x = 538,057.80 × 92,444.70
  4. Step 4: Simplify right side
    358,683.20x = 49,740,591,903.66
  5. Step 5: Solve for x
    x = 49,740,591,903.66/358,683.20
  6. Step 6: Final answer
    x = 138,675.56

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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.