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Finding the Fourth Proportional to 346,150.80, 519,517.80 and 135,939.60

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Solution

The fourth proportional to 346,150.80, 519,517.80 and 135,939.60 is: 204,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,150.80 : 519,517.80 = 135,939.60 : x
  2. Step 2: Convert to fraction form
    346,150.80/519,517.80 = 135,939.60/x
  3. Step 3: Cross multiply
    346,150.80x = 519,517.80 × 135,939.60
  4. Step 4: Simplify right side
    346,150.80x = 70,623,041,924.88
  5. Step 5: Solve for x
    x = 70,623,041,924.88/346,150.80
  6. Step 6: Final answer
    x = 204,023.92

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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.