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Finding the Fourth Proportional to 351,543.92, 527,340.53 and 141,181.88

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Solution

The fourth proportional to 351,543.92, 527,340.53 and 141,181.88 is: 211,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,543.92 : 527,340.53 = 141,181.88 : x
  2. Step 2: Convert to fraction form
    351,543.92/527,340.53 = 141,181.88/x
  3. Step 3: Cross multiply
    351,543.92x = 527,340.53 × 141,181.88
  4. Step 4: Simplify right side
    351,543.92x = 74,450,925,141.85
  5. Step 5: Solve for x
    x = 74,450,925,141.85/351,543.92
  6. Step 6: Final answer
    x = 211,782.72

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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.