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Finding the Fourth Proportional to 189,095.55, 260,961.57 and 104,212.62

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Solution

The fourth proportional to 189,095.55, 260,961.57 and 104,212.62 is: 143,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,095.55 : 260,961.57 = 104,212.62 : x
  2. Step 2: Convert to fraction form
    189,095.55/260,961.57 = 104,212.62/x
  3. Step 3: Cross multiply
    189,095.55x = 260,961.57 × 104,212.62
  4. Step 4: Simplify right side
    189,095.55x = 27,195,488,929.01
  5. Step 5: Solve for x
    x = 27,195,488,929.01/189,095.55
  6. Step 6: Final answer
    x = 143,818.77

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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.