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Finding the Fourth Proportional to 333,779.96, 500,734.38 and 109,079.78

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Solution

The fourth proportional to 333,779.96, 500,734.38 and 109,079.78 is: 163,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,779.96 : 500,734.38 = 109,079.78 : x
  2. Step 2: Convert to fraction form
    333,779.96/500,734.38 = 109,079.78/x
  3. Step 3: Cross multiply
    333,779.96x = 500,734.38 × 109,079.78
  4. Step 4: Simplify right side
    333,779.96x = 54,619,993,505.16
  5. Step 5: Solve for x
    x = 54,619,993,505.16/333,779.96
  6. Step 6: Final answer
    x = 163,640.72

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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.