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Finding the Fourth Proportional to 188,448.56, 282,547.87 and 68,491.26

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Solution

The fourth proportional to 188,448.56, 282,547.87 and 68,491.26 is: 102,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,448.56 : 282,547.87 = 68,491.26 : x
  2. Step 2: Convert to fraction form
    188,448.56/282,547.87 = 68,491.26/x
  3. Step 3: Cross multiply
    188,448.56x = 282,547.87 × 68,491.26
  4. Step 4: Simplify right side
    188,448.56x = 19,352,060,659.40
  5. Step 5: Solve for x
    x = 19,352,060,659.40/188,448.56
  6. Step 6: Final answer
    x = 102,691.48

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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.