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Finding the Fourth Proportional to 112,756.64, 169,135.36 and 37,874.64

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Solution

The fourth proportional to 112,756.64, 169,135.36 and 37,874.64 is: 56,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,756.64 : 169,135.36 = 37,874.64 : x
  2. Step 2: Convert to fraction form
    112,756.64/169,135.36 = 37,874.64/x
  3. Step 3: Cross multiply
    112,756.64x = 169,135.36 × 37,874.64
  4. Step 4: Simplify right side
    112,756.64x = 6,405,940,871.27
  5. Step 5: Solve for x
    x = 6,405,940,871.27/112,756.64
  6. Step 6: Final answer
    x = 56,812.09

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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.