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Finding the Fourth Proportional to 108,503.64, 162,780.84 and 33,619.86

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Solution

The fourth proportional to 108,503.64, 162,780.84 and 33,619.86 is: 50,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.64 : 162,780.84 = 33,619.86 : x
  2. Step 2: Convert to fraction form
    108,503.64/162,780.84 = 33,619.86/x
  3. Step 3: Cross multiply
    108,503.64x = 162,780.84 × 33,619.86
  4. Step 4: Simplify right side
    108,503.64x = 5,472,669,051.48
  5. Step 5: Solve for x
    x = 5,472,669,051.48/108,503.64
  6. Step 6: Final answer
    x = 50,437.65

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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.