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Finding the Fourth Proportional to 188,698.92, 283,097.58 and 70,371.28

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Solution

The fourth proportional to 188,698.92, 283,097.58 and 70,371.28 is: 105,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,698.92 : 283,097.58 = 70,371.28 : x
  2. Step 2: Convert to fraction form
    188,698.92/283,097.58 = 70,371.28/x
  3. Step 3: Cross multiply
    188,698.92x = 283,097.58 × 70,371.28
  4. Step 4: Simplify right side
    188,698.92x = 19,921,939,555.32
  5. Step 5: Solve for x
    x = 19,921,939,555.32/188,698.92
  6. Step 6: Final answer
    x = 105,575.27

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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.