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Finding the Fourth Proportional to 189,079.53, 260,917.41 and 104,196.57

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Solution

The fourth proportional to 189,079.53, 260,917.41 and 104,196.57 is: 143,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,079.53 : 260,917.41 = 104,196.57 : x
  2. Step 2: Convert to fraction form
    189,079.53/260,917.41 = 104,196.57/x
  3. Step 3: Cross multiply
    189,079.53x = 260,917.41 × 104,196.57
  4. Step 4: Simplify right side
    189,079.53x = 27,186,699,175.28
  5. Step 5: Solve for x
    x = 27,186,699,175.28/189,079.53
  6. Step 6: Final answer
    x = 143,784.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.