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Finding the Fourth Proportional to 169,051.53, 253,624.69 and 67,920.60

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Solution

The fourth proportional to 169,051.53, 253,624.69 and 67,920.60 is: 101,899.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,051.53 : 253,624.69 = 67,920.60 : x
  2. Step 2: Convert to fraction form
    169,051.53/253,624.69 = 67,920.60/x
  3. Step 3: Cross multiply
    169,051.53x = 253,624.69 × 67,920.60
  4. Step 4: Simplify right side
    169,051.53x = 17,226,341,633.31
  5. Step 5: Solve for x
    x = 17,226,341,633.31/169,051.53
  6. Step 6: Final answer
    x = 101,899.94

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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.