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Finding the Fourth Proportional to 243,400.56, 335,891.92 and 134,501.88

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Solution

The fourth proportional to 243,400.56, 335,891.92 and 134,501.88 is: 185,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,400.56 : 335,891.92 = 134,501.88 : x
  2. Step 2: Convert to fraction form
    243,400.56/335,891.92 = 134,501.88/x
  3. Step 3: Cross multiply
    243,400.56x = 335,891.92 × 134,501.88
  4. Step 4: Simplify right side
    243,400.56x = 45,178,094,716.81
  5. Step 5: Solve for x
    x = 45,178,094,716.81/243,400.56
  6. Step 6: Final answer
    x = 185,612.12

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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.