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Finding the Fourth Proportional to 189,525.69, 261,540.45 and 104,640.93

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Solution

The fourth proportional to 189,525.69, 261,540.45 and 104,640.93 is: 144,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,525.69 : 261,540.45 = 104,640.93 : x
  2. Step 2: Convert to fraction form
    189,525.69/261,540.45 = 104,640.93/x
  3. Step 3: Cross multiply
    189,525.69x = 261,540.45 × 104,640.93
  4. Step 4: Simplify right side
    189,525.69x = 27,367,835,920.62
  5. Step 5: Solve for x
    x = 27,367,835,920.62/189,525.69
  6. Step 6: Final answer
    x = 144,401.72

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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.