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Finding the Fourth Proportional to 72,992.70, 109,505.52 and 23,075.82

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Solution

The fourth proportional to 72,992.70, 109,505.52 and 23,075.82 is: 34,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,992.70 : 109,505.52 = 23,075.82 : x
  2. Step 2: Convert to fraction form
    72,992.70/109,505.52 = 23,075.82/x
  3. Step 3: Cross multiply
    72,992.70x = 109,505.52 × 23,075.82
  4. Step 4: Simplify right side
    72,992.70x = 2,526,929,668.53
  5. Step 5: Solve for x
    x = 2,526,929,668.53/72,992.70
  6. Step 6: Final answer
    x = 34,618.94

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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.