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Finding the Fourth Proportional to 351,295.78, 527,027.50 and 114,638.90

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Solution

The fourth proportional to 351,295.78, 527,027.50 and 114,638.90 is: 171,985.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,295.78 : 527,027.50 = 114,638.90 : x
  2. Step 2: Convert to fraction form
    351,295.78/527,027.50 = 114,638.90/x
  3. Step 3: Cross multiply
    351,295.78x = 527,027.50 × 114,638.90
  4. Step 4: Simplify right side
    351,295.78x = 60,417,852,869.75
  5. Step 5: Solve for x
    x = 60,417,852,869.75/351,295.78
  6. Step 6: Final answer
    x = 171,985.71

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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.