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Finding the Fourth Proportional to 68,904.19, 103,224.79 and 46,679.41

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Solution

The fourth proportional to 68,904.19, 103,224.79 and 46,679.41 is: 69,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904.19 : 103,224.79 = 46,679.41 : x
  2. Step 2: Convert to fraction form
    68,904.19/103,224.79 = 46,679.41/x
  3. Step 3: Cross multiply
    68,904.19x = 103,224.79 × 46,679.41
  4. Step 4: Simplify right side
    68,904.19x = 4,818,472,294.57
  5. Step 5: Solve for x
    x = 4,818,472,294.57/68,904.19
  6. Step 6: Final answer
    x = 69,930.03

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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.