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Finding the Fourth Proportional to 104,216.48, 143,868.34 and 69,820.44

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Solution

The fourth proportional to 104,216.48, 143,868.34 and 69,820.44 is: 96,385.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,216.48 : 143,868.34 = 69,820.44 : x
  2. Step 2: Convert to fraction form
    104,216.48/143,868.34 = 69,820.44/x
  3. Step 3: Cross multiply
    104,216.48x = 143,868.34 × 69,820.44
  4. Step 4: Simplify right side
    104,216.48x = 10,044,950,626.32
  5. Step 5: Solve for x
    x = 10,044,950,626.32/104,216.48
  6. Step 6: Final answer
    x = 96,385.43

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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.