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Finding the Fourth Proportional to 189,604.74, 261,632.16 and 104,716.74

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Solution

The fourth proportional to 189,604.74, 261,632.16 and 104,716.74 is: 144,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,604.74 : 261,632.16 = 104,716.74 : x
  2. Step 2: Convert to fraction form
    189,604.74/261,632.16 = 104,716.74/x
  3. Step 3: Cross multiply
    189,604.74x = 261,632.16 × 104,716.74
  4. Step 4: Simplify right side
    189,604.74x = 27,397,266,874.36
  5. Step 5: Solve for x
    x = 27,397,266,874.36/189,604.74
  6. Step 6: Final answer
    x = 144,496.74

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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.