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Finding the Fourth Proportional to 188,704.14, 260,411.70 and 103,819.38

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Solution

The fourth proportional to 188,704.14, 260,411.70 and 103,819.38 is: 143,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,704.14 : 260,411.70 = 103,819.38 : x
  2. Step 2: Convert to fraction form
    188,704.14/260,411.70 = 103,819.38/x
  3. Step 3: Cross multiply
    188,704.14x = 260,411.70 × 103,819.38
  4. Step 4: Simplify right side
    188,704.14x = 27,035,781,238.75
  5. Step 5: Solve for x
    x = 27,035,781,238.75/188,704.14
  6. Step 6: Final answer
    x = 143,270.74

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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.