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Finding the Fourth Proportional to 104,480.96, 144,073.48 and 74,234.80

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Solution

The fourth proportional to 104,480.96, 144,073.48 and 74,234.80 is: 102,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,480.96 : 144,073.48 = 74,234.80 : x
  2. Step 2: Convert to fraction form
    104,480.96/144,073.48 = 74,234.80/x
  3. Step 3: Cross multiply
    104,480.96x = 144,073.48 × 74,234.80
  4. Step 4: Simplify right side
    104,480.96x = 10,695,265,973.10
  5. Step 5: Solve for x
    x = 10,695,265,973.10/104,480.96
  6. Step 6: Final answer
    x = 102,365.69

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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.