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Finding the Fourth Proportional to 189,381.92, 261,346.76 and 104,498.96

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Solution

The fourth proportional to 189,381.92, 261,346.76 and 104,498.96 is: 144,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,381.92 : 261,346.76 = 104,498.96 : x
  2. Step 2: Convert to fraction form
    189,381.92/261,346.76 = 104,498.96/x
  3. Step 3: Cross multiply
    189,381.92x = 261,346.76 × 104,498.96
  4. Step 4: Simplify right side
    189,381.92x = 27,310,464,619.37
  5. Step 5: Solve for x
    x = 27,310,464,619.37/189,381.92
  6. Step 6: Final answer
    x = 144,208.41

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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.