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Finding the Fourth Proportional to 334,790.92, 502,190.38 and 98,138.39

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Solution

The fourth proportional to 334,790.92, 502,190.38 and 98,138.39 is: 147,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,790.92 : 502,190.38 = 98,138.39 : x
  2. Step 2: Convert to fraction form
    334,790.92/502,190.38 = 98,138.39/x
  3. Step 3: Cross multiply
    334,790.92x = 502,190.38 × 98,138.39
  4. Step 4: Simplify right side
    334,790.92x = 49,284,152,978.41
  5. Step 5: Solve for x
    x = 49,284,152,978.41/334,790.92
  6. Step 6: Final answer
    x = 147,208.75

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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.