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Finding the Fourth Proportional to 68,496.09, 102,703.06 and 28,466.79

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Solution

The fourth proportional to 68,496.09, 102,703.06 and 28,466.79 is: 42,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,496.09 : 102,703.06 = 28,466.79 : x
  2. Step 2: Convert to fraction form
    68,496.09/102,703.06 = 28,466.79/x
  3. Step 3: Cross multiply
    68,496.09x = 102,703.06 × 28,466.79
  4. Step 4: Simplify right side
    68,496.09x = 2,923,626,441.38
  5. Step 5: Solve for x
    x = 2,923,626,441.38/68,496.09
  6. Step 6: Final answer
    x = 42,683.11

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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.