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Finding the Fourth Proportional to 189,016.58, 260,844.90 and 104,136.68

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Solution

The fourth proportional to 189,016.58, 260,844.90 and 104,136.68 is: 143,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,016.58 : 260,844.90 = 104,136.68 : x
  2. Step 2: Convert to fraction form
    189,016.58/260,844.90 = 104,136.68/x
  3. Step 3: Cross multiply
    189,016.58x = 260,844.90 × 104,136.68
  4. Step 4: Simplify right side
    189,016.58x = 27,163,521,880.93
  5. Step 5: Solve for x
    x = 27,163,521,880.93/189,016.58
  6. Step 6: Final answer
    x = 143,709.73

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1.5x scale

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.