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Finding the Fourth Proportional to 346,489.20, 519,474.60 and 188,895.60

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Solution

The fourth proportional to 346,489.20, 519,474.60 and 188,895.60 is: 283,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,489.20 : 519,474.60 = 188,895.60 : x
  2. Step 2: Convert to fraction form
    346,489.20/519,474.60 = 188,895.60/x
  3. Step 3: Cross multiply
    346,489.20x = 519,474.60 × 188,895.60
  4. Step 4: Simplify right side
    346,489.20x = 98,126,466,251.76
  5. Step 5: Solve for x
    x = 98,126,466,251.76/346,489.20
  6. Step 6: Final answer
    x = 283,202.09

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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.