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Finding the Fourth Proportional to 55,396.51, 83,094.90 and 22,119.28

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Solution

The fourth proportional to 55,396.51, 83,094.90 and 22,119.28 is: 33,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,396.51 : 83,094.90 = 22,119.28 : x
  2. Step 2: Convert to fraction form
    55,396.51/83,094.90 = 22,119.28/x
  3. Step 3: Cross multiply
    55,396.51x = 83,094.90 × 22,119.28
  4. Step 4: Simplify right side
    55,396.51x = 1,837,999,359.67
  5. Step 5: Solve for x
    x = 1,837,999,359.67/55,396.51
  6. Step 6: Final answer
    x = 33,178.97

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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.