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Finding the Fourth Proportional to 75,253.70, 103,764.21 and 60,136.00

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Solution

The fourth proportional to 75,253.70, 103,764.21 and 60,136.00 is: 82,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,253.70 : 103,764.21 = 60,136.00 : x
  2. Step 2: Convert to fraction form
    75,253.70/103,764.21 = 60,136.00/x
  3. Step 3: Cross multiply
    75,253.70x = 103,764.21 × 60,136.00
  4. Step 4: Simplify right side
    75,253.70x = 6,239,964,047.64
  5. Step 5: Solve for x
    x = 6,239,964,047.64/75,253.70
  6. Step 6: Final answer
    x = 82,919.03

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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.