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Finding the Fourth Proportional to 104,708.30, 144,500.22 and 56,964.60

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Solution

The fourth proportional to 104,708.30, 144,500.22 and 56,964.60 is: 78,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,708.30 : 144,500.22 = 56,964.60 : x
  2. Step 2: Convert to fraction form
    104,708.30/144,500.22 = 56,964.60/x
  3. Step 3: Cross multiply
    104,708.30x = 144,500.22 × 56,964.60
  4. Step 4: Simplify right side
    104,708.30x = 8,231,397,232.21
  5. Step 5: Solve for x
    x = 8,231,397,232.21/104,708.30
  6. Step 6: Final answer
    x = 78,612.66

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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.