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Finding the Fourth Proportional to 468,812.79, 703,238.67 and 136,388.79

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Solution

The fourth proportional to 468,812.79, 703,238.67 and 136,388.79 is: 204,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,812.79 : 703,238.67 = 136,388.79 : x
  2. Step 2: Convert to fraction form
    468,812.79/703,238.67 = 136,388.79/x
  3. Step 3: Cross multiply
    468,812.79x = 703,238.67 × 136,388.79
  4. Step 4: Simplify right side
    468,812.79x = 95,913,871,282.51
  5. Step 5: Solve for x
    x = 95,913,871,282.51/468,812.79
  6. Step 6: Final answer
    x = 204,588.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.