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Finding the Fourth Proportional to 186,512.96, 279,713.80 and 68,156.84

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Solution

The fourth proportional to 186,512.96, 279,713.80 and 68,156.84 is: 102,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,512.96 : 279,713.80 = 68,156.84 : x
  2. Step 2: Convert to fraction form
    186,512.96/279,713.80 = 68,156.84/x
  3. Step 3: Cross multiply
    186,512.96x = 279,713.80 × 68,156.84
  4. Step 4: Simplify right side
    186,512.96x = 19,064,408,712.39
  5. Step 5: Solve for x
    x = 19,064,408,712.39/186,512.96
  6. Step 6: Final answer
    x = 102,214.93

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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.