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Finding the Fourth Proportional to 68,878.22, 95,061.87 and 38,258.33

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Solution

The fourth proportional to 68,878.22, 95,061.87 and 38,258.33 is: 52,802.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878.22 : 95,061.87 = 38,258.33 : x
  2. Step 2: Convert to fraction form
    68,878.22/95,061.87 = 38,258.33/x
  3. Step 3: Cross multiply
    68,878.22x = 95,061.87 × 38,258.33
  4. Step 4: Simplify right side
    68,878.22x = 3,636,907,917.57
  5. Step 5: Solve for x
    x = 3,636,907,917.57/68,878.22
  6. Step 6: Final answer
    x = 52,802.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.