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Finding the Fourth Proportional to 255,137.58, 352,052.46 and 153,141.44

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Solution

The fourth proportional to 255,137.58, 352,052.46 and 153,141.44 is: 211,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,137.58 : 352,052.46 = 153,141.44 : x
  2. Step 2: Convert to fraction form
    255,137.58/352,052.46 = 153,141.44/x
  3. Step 3: Cross multiply
    255,137.58x = 352,052.46 × 153,141.44
  4. Step 4: Simplify right side
    255,137.58x = 53,913,818,919.68
  5. Step 5: Solve for x
    x = 53,913,818,919.68/255,137.58
  6. Step 6: Final answer
    x = 211,312.73

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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.