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Finding the Fourth Proportional to 104,215.53, 143,820.11 and 63,951.54

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Solution

The fourth proportional to 104,215.53, 143,820.11 and 63,951.54 is: 88,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,215.53 : 143,820.11 = 63,951.54 : x
  2. Step 2: Convert to fraction form
    104,215.53/143,820.11 = 63,951.54/x
  3. Step 3: Cross multiply
    104,215.53x = 143,820.11 × 63,951.54
  4. Step 4: Simplify right side
    104,215.53x = 9,197,517,517.47
  5. Step 5: Solve for x
    x = 9,197,517,517.47/104,215.53
  6. Step 6: Final answer
    x = 88,254.77

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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.