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Finding the Fourth Proportional to 75,080.69, 103,601.34 and 43,243.44

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Solution

The fourth proportional to 75,080.69, 103,601.34 and 43,243.44 is: 59,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,080.69 : 103,601.34 = 43,243.44 : x
  2. Step 2: Convert to fraction form
    75,080.69/103,601.34 = 43,243.44/x
  3. Step 3: Cross multiply
    75,080.69x = 103,601.34 × 43,243.44
  4. Step 4: Simplify right side
    75,080.69x = 4,480,078,113.99
  5. Step 5: Solve for x
    x = 4,480,078,113.99/75,080.69
  6. Step 6: Final answer
    x = 59,670.18

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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.