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Finding the Fourth Proportional to 351,894.78, 527,842.31 and 127,250.26

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Solution

The fourth proportional to 351,894.78, 527,842.31 and 127,250.26 is: 190,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,894.78 : 527,842.31 = 127,250.26 : x
  2. Step 2: Convert to fraction form
    351,894.78/527,842.31 = 127,250.26/x
  3. Step 3: Cross multiply
    351,894.78x = 527,842.31 × 127,250.26
  4. Step 4: Simplify right side
    351,894.78x = 67,168,069,230.64
  5. Step 5: Solve for x
    x = 67,168,069,230.64/351,894.78
  6. Step 6: Final answer
    x = 190,875.44

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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.