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Finding the Fourth Proportional to 103,927.46, 143,324.25 and 68,104.46

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Solution

The fourth proportional to 103,927.46, 143,324.25 and 68,104.46 is: 93,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,927.46 : 143,324.25 = 68,104.46 : x
  2. Step 2: Convert to fraction form
    103,927.46/143,324.25 = 68,104.46/x
  3. Step 3: Cross multiply
    103,927.46x = 143,324.25 × 68,104.46
  4. Step 4: Simplify right side
    103,927.46x = 9,761,020,651.16
  5. Step 5: Solve for x
    x = 9,761,020,651.16/103,927.46
  6. Step 6: Final answer
    x = 93,921.48

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1.5x scale

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.