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Finding the Fourth Proportional to 188,843.81, 283,313.70 and 70,516.17

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Solution

The fourth proportional to 188,843.81, 283,313.70 and 70,516.17 is: 105,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,843.81 : 283,313.70 = 70,516.17 : x
  2. Step 2: Convert to fraction form
    188,843.81/283,313.70 = 70,516.17/x
  3. Step 3: Cross multiply
    188,843.81x = 283,313.70 × 70,516.17
  4. Step 4: Simplify right side
    188,843.81x = 19,978,197,032.53
  5. Step 5: Solve for x
    x = 19,978,197,032.53/188,843.81
  6. Step 6: Final answer
    x = 105,792.18

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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.