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Finding the Fourth Proportional to 109,555.50, 151,186.61 and 59,254.50

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Solution

The fourth proportional to 109,555.50, 151,186.61 and 59,254.50 is: 81,771.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,555.50 : 151,186.61 = 59,254.50 : x
  2. Step 2: Convert to fraction form
    109,555.50/151,186.61 = 59,254.50/x
  3. Step 3: Cross multiply
    109,555.50x = 151,186.61 × 59,254.50
  4. Step 4: Simplify right side
    109,555.50x = 8,958,486,685.97
  5. Step 5: Solve for x
    x = 8,958,486,685.97/109,555.50
  6. Step 6: Final answer
    x = 81,771.22

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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.