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Finding the Fourth Proportional to 311,153.15, 466,841.81 and 108,779.11

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Solution

The fourth proportional to 311,153.15, 466,841.81 and 108,779.11 is: 163,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,153.15 : 466,841.81 = 108,779.11 : x
  2. Step 2: Convert to fraction form
    311,153.15/466,841.81 = 108,779.11/x
  3. Step 3: Cross multiply
    311,153.15x = 466,841.81 × 108,779.11
  4. Step 4: Simplify right side
    311,153.15x = 50,782,635,707.43
  5. Step 5: Solve for x
    x = 50,782,635,707.43/311,153.15
  6. Step 6: Final answer
    x = 163,207.85

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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.