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Finding the Fourth Proportional to 189,367.96, 261,333.25 and 104,490.49

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Solution

The fourth proportional to 189,367.96, 261,333.25 and 104,490.49 is: 144,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,367.96 : 261,333.25 = 104,490.49 : x
  2. Step 2: Convert to fraction form
    189,367.96/261,333.25 = 104,490.49/x
  3. Step 3: Cross multiply
    189,367.96x = 261,333.25 × 104,490.49
  4. Step 4: Simplify right side
    189,367.96x = 27,306,837,516.67
  5. Step 5: Solve for x
    x = 27,306,837,516.67/189,367.96
  6. Step 6: Final answer
    x = 144,199.89

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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.