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Finding the Fourth Proportional to 109,410.70, 150,986.75 and 59,109.70

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Solution

The fourth proportional to 109,410.70, 150,986.75 and 59,109.70 is: 81,571.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,410.70 : 150,986.75 = 59,109.70 : x
  2. Step 2: Convert to fraction form
    109,410.70/150,986.75 = 59,109.70/x
  3. Step 3: Cross multiply
    109,410.70x = 150,986.75 × 59,109.70
  4. Step 4: Simplify right side
    109,410.70x = 8,924,780,445.99
  5. Step 5: Solve for x
    x = 8,924,780,445.99/109,410.70
  6. Step 6: Final answer
    x = 81,571.37

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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.