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Finding the Fourth Proportional to 197,554, 272,624.51 and 106,909.97

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Solution

The fourth proportional to 197,554, 272,624.51 and 106,909.97 is: 147,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,554 : 272,624.51 = 106,909.97 : x
  2. Step 2: Convert to fraction form
    197,554/272,624.51 = 106,909.97/x
  3. Step 3: Cross multiply
    197,554x = 272,624.51 × 106,909.97
  4. Step 4: Simplify right side
    197,554x = 29,146,276,287.69
  5. Step 5: Solve for x
    x = 29,146,276,287.69/197,554
  6. Step 6: Final answer
    x = 147,535.74

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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.