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Finding the Fourth Proportional to 335,842.80, 503,764.20 and 111,237.90

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Solution

The fourth proportional to 335,842.80, 503,764.20 and 111,237.90 is: 166,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,842.80 : 503,764.20 = 111,237.90 : x
  2. Step 2: Convert to fraction form
    335,842.80/503,764.20 = 111,237.90/x
  3. Step 3: Cross multiply
    335,842.80x = 503,764.20 × 111,237.90
  4. Step 4: Simplify right side
    335,842.80x = 56,037,671,703.18
  5. Step 5: Solve for x
    x = 56,037,671,703.18/335,842.80
  6. Step 6: Final answer
    x = 166,856.85

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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.