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Finding the Fourth Proportional to 189,605.74, 261,633.54 and 104,717.74

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Solution

The fourth proportional to 189,605.74, 261,633.54 and 104,717.74 is: 144,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,605.74 : 261,633.54 = 104,717.74 : x
  2. Step 2: Convert to fraction form
    189,605.74/261,633.54 = 104,717.74/x
  3. Step 3: Cross multiply
    189,605.74x = 261,633.54 × 104,717.74
  4. Step 4: Simplify right side
    189,605.74x = 27,397,673,017.00
  5. Step 5: Solve for x
    x = 27,397,673,017.00/189,605.74
  6. Step 6: Final answer
    x = 144,498.12

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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.