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Finding the Fourth Proportional to 189,712.53, 261,793.01 and 104,824.13

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Solution

The fourth proportional to 189,712.53, 261,793.01 and 104,824.13 is: 144,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,712.53 : 261,793.01 = 104,824.13 : x
  2. Step 2: Convert to fraction form
    189,712.53/261,793.01 = 104,824.13/x
  3. Step 3: Cross multiply
    189,712.53x = 261,793.01 × 104,824.13
  4. Step 4: Simplify right side
    189,712.53x = 27,442,223,466.43
  5. Step 5: Solve for x
    x = 27,442,223,466.43/189,712.53
  6. Step 6: Final answer
    x = 144,651.61

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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.