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Finding the Fourth Proportional to 104,104.50, 143,664.21 and 59,391.54

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Solution

The fourth proportional to 104,104.50, 143,664.21 and 59,391.54 is: 81,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.50 : 143,664.21 = 59,391.54 : x
  2. Step 2: Convert to fraction form
    104,104.50/143,664.21 = 59,391.54/x
  3. Step 3: Cross multiply
    104,104.50x = 143,664.21 × 59,391.54
  4. Step 4: Simplify right side
    104,104.50x = 8,532,438,674.78
  5. Step 5: Solve for x
    x = 8,532,438,674.78/104,104.50
  6. Step 6: Final answer
    x = 81,960.33

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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.