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Finding the Fourth Proportional to 152,644.80, 210,660.03 and 84,683.37

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Solution

The fourth proportional to 152,644.80, 210,660.03 and 84,683.37 is: 116,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,644.80 : 210,660.03 = 84,683.37 : x
  2. Step 2: Convert to fraction form
    152,644.80/210,660.03 = 84,683.37/x
  3. Step 3: Cross multiply
    152,644.80x = 210,660.03 × 84,683.37
  4. Step 4: Simplify right side
    152,644.80x = 17,839,401,264.70
  5. Step 5: Solve for x
    x = 17,839,401,264.70/152,644.80
  6. Step 6: Final answer
    x = 116,868.71

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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.