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Finding the Fourth Proportional to 243,446.92, 335,958.44 and 136,021.48

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Solution

The fourth proportional to 243,446.92, 335,958.44 and 136,021.48 is: 187,710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,446.92 : 335,958.44 = 136,021.48 : x
  2. Step 2: Convert to fraction form
    243,446.92/335,958.44 = 136,021.48/x
  3. Step 3: Cross multiply
    243,446.92x = 335,958.44 × 136,021.48
  4. Step 4: Simplify right side
    243,446.92x = 45,697,562,707.29
  5. Step 5: Solve for x
    x = 45,697,562,707.29/243,446.92
  6. Step 6: Final answer
    x = 187,710.58

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1.5x scale

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.