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Finding the Fourth Proportional to 186,503.96, 279,700.32 and 68,147.84

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Solution

The fourth proportional to 186,503.96, 279,700.32 and 68,147.84 is: 102,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,503.96 : 279,700.32 = 68,147.84 : x
  2. Step 2: Convert to fraction form
    186,503.96/279,700.32 = 68,147.84/x
  3. Step 3: Cross multiply
    186,503.96x = 279,700.32 × 68,147.84
  4. Step 4: Simplify right side
    186,503.96x = 19,060,972,655.31
  5. Step 5: Solve for x
    x = 19,060,972,655.31/186,503.96
  6. Step 6: Final answer
    x = 102,201.44

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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.