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Finding the Fourth Proportional to 243,052.91, 335,362.95 and 139,667.14

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Solution

The fourth proportional to 243,052.91, 335,362.95 and 139,667.14 is: 192,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,052.91 : 335,362.95 = 139,667.14 : x
  2. Step 2: Convert to fraction form
    243,052.91/335,362.95 = 139,667.14/x
  3. Step 3: Cross multiply
    243,052.91x = 335,362.95 × 139,667.14
  4. Step 4: Simplify right side
    243,052.91x = 46,839,184,245.79
  5. Step 5: Solve for x
    x = 46,839,184,245.79/243,052.91
  6. Step 6: Final answer
    x = 192,711.88

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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.