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Finding the Fourth Proportional to 109,988.37, 151,783.07 and 59,687.37

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Solution

The fourth proportional to 109,988.37, 151,783.07 and 59,687.37 is: 82,368.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,988.37 : 151,783.07 = 59,687.37 : x
  2. Step 2: Convert to fraction form
    109,988.37/151,783.07 = 59,687.37/x
  3. Step 3: Cross multiply
    109,988.37x = 151,783.07 × 59,687.37
  4. Step 4: Simplify right side
    109,988.37x = 9,059,531,960.39
  5. Step 5: Solve for x
    x = 9,059,531,960.39/109,988.37
  6. Step 6: Final answer
    x = 82,368.09

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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.