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Finding the Fourth Proportional to 74,562.21, 111,870.77 and 34,600.32

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Solution

The fourth proportional to 74,562.21, 111,870.77 and 34,600.32 is: 51,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,562.21 : 111,870.77 = 34,600.32 : x
  2. Step 2: Convert to fraction form
    74,562.21/111,870.77 = 34,600.32/x
  3. Step 3: Cross multiply
    74,562.21x = 111,870.77 × 34,600.32
  4. Step 4: Simplify right side
    74,562.21x = 3,870,764,267.64
  5. Step 5: Solve for x
    x = 3,870,764,267.64/74,562.21
  6. Step 6: Final answer
    x = 51,913.22

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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.