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Finding the Fourth Proportional to 188,259.67, 259,734.36 and 107,630.11

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Solution

The fourth proportional to 188,259.67, 259,734.36 and 107,630.11 is: 148,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,259.67 : 259,734.36 = 107,630.11 : x
  2. Step 2: Convert to fraction form
    188,259.67/259,734.36 = 107,630.11/x
  3. Step 3: Cross multiply
    188,259.67x = 259,734.36 × 107,630.11
  4. Step 4: Simplify right side
    188,259.67x = 27,955,237,737.58
  5. Step 5: Solve for x
    x = 27,955,237,737.58/188,259.67
  6. Step 6: Final answer
    x = 148,492.97

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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.