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Finding the Fourth Proportional to 188,700.89, 283,100.54 and 70,373.25

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Solution

The fourth proportional to 188,700.89, 283,100.54 and 70,373.25 is: 105,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,700.89 : 283,100.54 = 70,373.25 : x
  2. Step 2: Convert to fraction form
    188,700.89/283,100.54 = 70,373.25/x
  3. Step 3: Cross multiply
    188,700.89x = 283,100.54 × 70,373.25
  4. Step 4: Simplify right side
    188,700.89x = 19,922,704,724.69
  5. Step 5: Solve for x
    x = 19,922,704,724.69/188,700.89
  6. Step 6: Final answer
    x = 105,578.23

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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.