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Finding the Fourth Proportional to 104,808.57, 144,636.42 and 57,061.80

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Solution

The fourth proportional to 104,808.57, 144,636.42 and 57,061.80 is: 78,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,808.57 : 144,636.42 = 57,061.80 : x
  2. Step 2: Convert to fraction form
    104,808.57/144,636.42 = 57,061.80/x
  3. Step 3: Cross multiply
    104,808.57x = 144,636.42 × 57,061.80
  4. Step 4: Simplify right side
    104,808.57x = 8,253,214,470.76
  5. Step 5: Solve for x
    x = 8,253,214,470.76/104,808.57
  6. Step 6: Final answer
    x = 78,745.61

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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.