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Finding the Fourth Proportional to 189,885.77, 262,044.11 and 105,004.25

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Solution

The fourth proportional to 189,885.77, 262,044.11 and 105,004.25 is: 144,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,885.77 : 262,044.11 = 105,004.25 : x
  2. Step 2: Convert to fraction form
    189,885.77/262,044.11 = 105,004.25/x
  3. Step 3: Cross multiply
    189,885.77x = 262,044.11 × 105,004.25
  4. Step 4: Simplify right side
    189,885.77x = 27,515,745,237.47
  5. Step 5: Solve for x
    x = 27,515,745,237.47/189,885.77
  6. Step 6: Final answer
    x = 144,906.83

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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.