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Finding the Fourth Proportional to 103,059.59, 154,326.92 and 67,892.63

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Solution

The fourth proportional to 103,059.59, 154,326.92 and 67,892.63 is: 101,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,059.59 : 154,326.92 = 67,892.63 : x
  2. Step 2: Convert to fraction form
    103,059.59/154,326.92 = 67,892.63/x
  3. Step 3: Cross multiply
    103,059.59x = 154,326.92 × 67,892.63
  4. Step 4: Simplify right side
    103,059.59x = 10,477,659,876.70
  5. Step 5: Solve for x
    x = 10,477,659,876.70/103,059.59
  6. Step 6: Final answer
    x = 101,666.04

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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.