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Finding the Fourth Proportional to 188,790.84, 283,098.78 and 70,376.94

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Solution

The fourth proportional to 188,790.84, 283,098.78 and 70,376.94 is: 105,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,790.84 : 283,098.78 = 70,376.94 : x
  2. Step 2: Convert to fraction form
    188,790.84/283,098.78 = 70,376.94/x
  3. Step 3: Cross multiply
    188,790.84x = 283,098.78 × 70,376.94
  4. Step 4: Simplify right side
    188,790.84x = 19,923,625,854.13
  5. Step 5: Solve for x
    x = 19,923,625,854.13/188,790.84
  6. Step 6: Final answer
    x = 105,532.80

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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.