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Finding the Fourth Proportional to 239,616, 330,670.08 and 133,632

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Solution

The fourth proportional to 239,616, 330,670.08 and 133,632 is: 184,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,616 : 330,670.08 = 133,632 : x
  2. Step 2: Convert to fraction form
    239,616/330,670.08 = 133,632/x
  3. Step 3: Cross multiply
    239,616x = 330,670.08 × 133,632
  4. Step 4: Simplify right side
    239,616x = 44,188,104,130.56
  5. Step 5: Solve for x
    x = 44,188,104,130.56/239,616
  6. Step 6: Final answer
    x = 184,412.16

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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.