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Finding the Fourth Proportional to 351,435.92, 527,074.84 and 161,714.28

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Solution

The fourth proportional to 351,435.92, 527,074.84 and 161,714.28 is: 242,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,435.92 : 527,074.84 = 161,714.28 : x
  2. Step 2: Convert to fraction form
    351,435.92/527,074.84 = 161,714.28/x
  3. Step 3: Cross multiply
    351,435.92x = 527,074.84 × 161,714.28
  4. Step 4: Simplify right side
    351,435.92x = 85,235,528,256.72
  5. Step 5: Solve for x
    x = 85,235,528,256.72/351,435.92
  6. Step 6: Final answer
    x = 242,535.05

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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.