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Finding the Fourth Proportional to 191,634.84, 287,346.45 and 88,940.20

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Solution

The fourth proportional to 191,634.84, 287,346.45 and 88,940.20 is: 133,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,634.84 : 287,346.45 = 88,940.20 : x
  2. Step 2: Convert to fraction form
    191,634.84/287,346.45 = 88,940.20/x
  3. Step 3: Cross multiply
    191,634.84x = 287,346.45 × 88,940.20
  4. Step 4: Simplify right side
    191,634.84x = 25,556,650,732.29
  5. Step 5: Solve for x
    x = 25,556,650,732.29/191,634.84
  6. Step 6: Final answer
    x = 133,361.19

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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.