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Finding the Fourth Proportional to 135,950.72, 203,946.80 and 69,354.52

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Solution

The fourth proportional to 135,950.72, 203,946.80 and 69,354.52 is: 104,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,950.72 : 203,946.80 = 69,354.52 : x
  2. Step 2: Convert to fraction form
    135,950.72/203,946.80 = 69,354.52/x
  3. Step 3: Cross multiply
    135,950.72x = 203,946.80 × 69,354.52
  4. Step 4: Simplify right side
    135,950.72x = 14,144,631,399.80
  5. Step 5: Solve for x
    x = 14,144,631,399.80/135,950.72
  6. Step 6: Final answer
    x = 104,042.35

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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.