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Finding the Fourth Proportional to 79,343.42, 109,493.07 and 43,533.42

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Solution

The fourth proportional to 79,343.42, 109,493.07 and 43,533.42 is: 60,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,343.42 : 109,493.07 = 43,533.42 : x
  2. Step 2: Convert to fraction form
    79,343.42/109,493.07 = 43,533.42/x
  3. Step 3: Cross multiply
    79,343.42x = 109,493.07 × 43,533.42
  4. Step 4: Simplify right side
    79,343.42x = 4,766,608,153.40
  5. Step 5: Solve for x
    x = 4,766,608,153.40/79,343.42
  6. Step 6: Final answer
    x = 60,075.66

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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.