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Finding the Fourth Proportional to 75,477.80, 113,303.10 and 44,330.60

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Solution

The fourth proportional to 75,477.80, 113,303.10 and 44,330.60 is: 66,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,477.80 : 113,303.10 = 44,330.60 : x
  2. Step 2: Convert to fraction form
    75,477.80/113,303.10 = 44,330.60/x
  3. Step 3: Cross multiply
    75,477.80x = 113,303.10 × 44,330.60
  4. Step 4: Simplify right side
    75,477.80x = 5,022,794,404.86
  5. Step 5: Solve for x
    x = 5,022,794,404.86/75,477.80
  6. Step 6: Final answer
    x = 66,546.65

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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.