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Finding the Fourth Proportional to 75,303.99, 113,132.49 and 71,048.46

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Solution

The fourth proportional to 75,303.99, 113,132.49 and 71,048.46 is: 106,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,303.99 : 113,132.49 = 71,048.46 : x
  2. Step 2: Convert to fraction form
    75,303.99/113,132.49 = 71,048.46/x
  3. Step 3: Cross multiply
    75,303.99x = 113,132.49 × 71,048.46
  4. Step 4: Simplify right side
    75,303.99x = 8,037,889,190.47
  5. Step 5: Solve for x
    x = 8,037,889,190.47/75,303.99
  6. Step 6: Final answer
    x = 106,739.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.