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Finding the Fourth Proportional to 191,924.97, 287,887.45 and 98,371.05

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Solution

The fourth proportional to 191,924.97, 287,887.45 and 98,371.05 is: 147,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,924.97 : 287,887.45 = 98,371.05 : x
  2. Step 2: Convert to fraction form
    191,924.97/287,887.45 = 98,371.05/x
  3. Step 3: Cross multiply
    191,924.97x = 287,887.45 × 98,371.05
  4. Step 4: Simplify right side
    191,924.97x = 28,319,790,738.32
  5. Step 5: Solve for x
    x = 28,319,790,738.32/191,924.97
  6. Step 6: Final answer
    x = 147,556.57

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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.