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Finding the Fourth Proportional to 55,561.80, 83,347.02 and 16,119.48

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Solution

The fourth proportional to 55,561.80, 83,347.02 and 16,119.48 is: 24,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,561.80 : 83,347.02 = 16,119.48 : x
  2. Step 2: Convert to fraction form
    55,561.80/83,347.02 = 16,119.48/x
  3. Step 3: Cross multiply
    55,561.80x = 83,347.02 × 16,119.48
  4. Step 4: Simplify right side
    55,561.80x = 1,343,510,621.95
  5. Step 5: Solve for x
    x = 1,343,510,621.95/55,561.80
  6. Step 6: Final answer
    x = 24,180.47

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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.