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Finding the Fourth Proportional to 339,267.81, 508,793.86 and 111,510.90

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Solution

The fourth proportional to 339,267.81, 508,793.86 and 111,510.90 is: 167,230.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,267.81 : 508,793.86 = 111,510.90 : x
  2. Step 2: Convert to fraction form
    339,267.81/508,793.86 = 111,510.90/x
  3. Step 3: Cross multiply
    339,267.81x = 508,793.86 × 111,510.90
  4. Step 4: Simplify right side
    339,267.81x = 56,736,059,056.32
  5. Step 5: Solve for x
    x = 56,736,059,056.32/339,267.81
  6. Step 6: Final answer
    x = 167,230.89

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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.