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Finding the Fourth Proportional to 200,819.76, 301,231.76 and 60,579.60

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Solution

The fourth proportional to 200,819.76, 301,231.76 and 60,579.60 is: 90,870.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,819.76 : 301,231.76 = 60,579.60 : x
  2. Step 2: Convert to fraction form
    200,819.76/301,231.76 = 60,579.60/x
  3. Step 3: Cross multiply
    200,819.76x = 301,231.76 × 60,579.60
  4. Step 4: Simplify right side
    200,819.76x = 18,248,499,528.10
  5. Step 5: Solve for x
    x = 18,248,499,528.10/200,819.76
  6. Step 6: Final answer
    x = 90,870.04

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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.