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Finding the Fourth Proportional to 243,656.43, 336,287.43 and 141,741.03

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Solution

The fourth proportional to 243,656.43, 336,287.43 and 141,741.03 is: 195,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,656.43 : 336,287.43 = 141,741.03 : x
  2. Step 2: Convert to fraction form
    243,656.43/336,287.43 = 141,741.03/x
  3. Step 3: Cross multiply
    243,656.43x = 336,287.43 × 141,741.03
  4. Step 4: Simplify right side
    243,656.43x = 47,665,727,965.33
  5. Step 5: Solve for x
    x = 47,665,727,965.33/243,656.43
  6. Step 6: Final answer
    x = 195,626.80

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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.