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Finding the Fourth Proportional to 68,520.99, 94,559.66 and 38,307.99

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Solution

The fourth proportional to 68,520.99, 94,559.66 and 38,307.99 is: 52,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.99 : 94,559.66 = 38,307.99 : x
  2. Step 2: Convert to fraction form
    68,520.99/94,559.66 = 38,307.99/x
  3. Step 3: Cross multiply
    68,520.99x = 94,559.66 × 38,307.99
  4. Step 4: Simplify right side
    68,520.99x = 3,622,390,509.68
  5. Step 5: Solve for x
    x = 3,622,390,509.68/68,520.99
  6. Step 6: Final answer
    x = 52,865.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.