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Finding the Fourth Proportional to 234,903.17, 324,162.88 and 138,117.96

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Solution

The fourth proportional to 234,903.17, 324,162.88 and 138,117.96 is: 190,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,903.17 : 324,162.88 = 138,117.96 : x
  2. Step 2: Convert to fraction form
    234,903.17/324,162.88 = 138,117.96/x
  3. Step 3: Cross multiply
    234,903.17x = 324,162.88 × 138,117.96
  4. Step 4: Simplify right side
    234,903.17x = 44,772,715,348.03
  5. Step 5: Solve for x
    x = 44,772,715,348.03/234,903.17
  6. Step 6: Final answer
    x = 190,600.73

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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.