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Finding the Fourth Proportional to 102,145.19, 153,217.81 and 27,265.62

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Solution

The fourth proportional to 102,145.19, 153,217.81 and 27,265.62 is: 40,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,145.19 : 153,217.81 = 27,265.62 : x
  2. Step 2: Convert to fraction form
    102,145.19/153,217.81 = 27,265.62/x
  3. Step 3: Cross multiply
    102,145.19x = 153,217.81 × 27,265.62
  4. Step 4: Simplify right side
    102,145.19x = 4,177,578,584.69
  5. Step 5: Solve for x
    x = 4,177,578,584.69/102,145.19
  6. Step 6: Final answer
    x = 40,898.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.