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Finding the Fourth Proportional to 346,879.46, 520,311.80 and 159,890.96

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Solution

The fourth proportional to 346,879.46, 520,311.80 and 159,890.96 is: 239,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,879.46 : 520,311.80 = 159,890.96 : x
  2. Step 2: Convert to fraction form
    346,879.46/520,311.80 = 159,890.96/x
  3. Step 3: Cross multiply
    346,879.46x = 520,311.80 × 159,890.96
  4. Step 4: Simplify right side
    346,879.46x = 83,193,154,901.83
  5. Step 5: Solve for x
    x = 83,193,154,901.83/346,879.46
  6. Step 6: Final answer
    x = 239,833.04

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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.