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Finding the Fourth Proportional to 346,093.20, 519,139.80 and 159,469.20

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Solution

The fourth proportional to 346,093.20, 519,139.80 and 159,469.20 is: 239,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,093.20 : 519,139.80 = 159,469.20 : x
  2. Step 2: Convert to fraction form
    346,093.20/519,139.80 = 159,469.20/x
  3. Step 3: Cross multiply
    346,093.20x = 519,139.80 × 159,469.20
  4. Step 4: Simplify right side
    346,093.20x = 82,786,808,594.16
  5. Step 5: Solve for x
    x = 82,786,808,594.16/346,093.20
  6. Step 6: Final answer
    x = 239,203.80

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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.