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Finding the Fourth Proportional to 91,052.64, 124,984.14 and 80,755.98

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Solution

The fourth proportional to 91,052.64, 124,984.14 and 80,755.98 is: 110,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,052.64 : 124,984.14 = 80,755.98 : x
  2. Step 2: Convert to fraction form
    91,052.64/124,984.14 = 80,755.98/x
  3. Step 3: Cross multiply
    91,052.64x = 124,984.14 × 80,755.98
  4. Step 4: Simplify right side
    91,052.64x = 10,093,216,710.16
  5. Step 5: Solve for x
    x = 10,093,216,710.16/91,052.64
  6. Step 6: Final answer
    x = 110,850.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.