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Finding the Fourth Proportional to 152,593.81, 210,556.93 and 84,611.28

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Solution

The fourth proportional to 152,593.81, 210,556.93 and 84,611.28 is: 116,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,593.81 : 210,556.93 = 84,611.28 : x
  2. Step 2: Convert to fraction form
    152,593.81/210,556.93 = 84,611.28/x
  3. Step 3: Cross multiply
    152,593.81x = 210,556.93 × 84,611.28
  4. Step 4: Simplify right side
    152,593.81x = 17,815,491,623.37
  5. Step 5: Solve for x
    x = 17,815,491,623.37/152,593.81
  6. Step 6: Final answer
    x = 116,751.07

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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.