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Finding the Fourth Proportional to 255,399.31, 352,451.04 and 148,031.62

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Solution

The fourth proportional to 255,399.31, 352,451.04 and 148,031.62 is: 204,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,399.31 : 352,451.04 = 148,031.62 : x
  2. Step 2: Convert to fraction form
    255,399.31/352,451.04 = 148,031.62/x
  3. Step 3: Cross multiply
    255,399.31x = 352,451.04 × 148,031.62
  4. Step 4: Simplify right side
    255,399.31x = 52,173,895,919.47
  5. Step 5: Solve for x
    x = 52,173,895,919.47/255,399.31
  6. Step 6: Final answer
    x = 204,283.63

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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.