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Finding the Fourth Proportional to 255,781.43, 352,965.44 and 141,080.03

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Solution

The fourth proportional to 255,781.43, 352,965.44 and 141,080.03 is: 194,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,781.43 : 352,965.44 = 141,080.03 : x
  2. Step 2: Convert to fraction form
    255,781.43/352,965.44 = 141,080.03/x
  3. Step 3: Cross multiply
    255,781.43x = 352,965.44 × 141,080.03
  4. Step 4: Simplify right side
    255,781.43x = 49,796,374,158.76
  5. Step 5: Solve for x
    x = 49,796,374,158.76/255,781.43
  6. Step 6: Final answer
    x = 194,683.31

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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.