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Finding the Fourth Proportional to 152,606.56, 210,593.28 and 84,623.80

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Solution

The fourth proportional to 152,606.56, 210,593.28 and 84,623.80 is: 116,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,606.56 : 210,593.28 = 84,623.80 : x
  2. Step 2: Convert to fraction form
    152,606.56/210,593.28 = 84,623.80/x
  3. Step 3: Cross multiply
    152,606.56x = 210,593.28 × 84,623.80
  4. Step 4: Simplify right side
    152,606.56x = 17,821,203,608.06
  5. Step 5: Solve for x
    x = 17,821,203,608.06/152,606.56
  6. Step 6: Final answer
    x = 116,778.75

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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.