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Finding the Fourth Proportional to 69,455.50, 104,239.11 and 36,185.50

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Solution

The fourth proportional to 69,455.50, 104,239.11 and 36,185.50 is: 54,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.50 : 104,239.11 = 36,185.50 : x
  2. Step 2: Convert to fraction form
    69,455.50/104,239.11 = 36,185.50/x
  3. Step 3: Cross multiply
    69,455.50x = 104,239.11 × 36,185.50
  4. Step 4: Simplify right side
    69,455.50x = 3,771,944,314.91
  5. Step 5: Solve for x
    x = 3,771,944,314.91/69,455.50
  6. Step 6: Final answer
    x = 54,307.35

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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.