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Finding the Fourth Proportional to 109,690.88, 151,373.41 and 59,389.88

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Solution

The fourth proportional to 109,690.88, 151,373.41 and 59,389.88 is: 81,958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,690.88 : 151,373.41 = 59,389.88 : x
  2. Step 2: Convert to fraction form
    109,690.88/151,373.41 = 59,389.88/x
  3. Step 3: Cross multiply
    109,690.88x = 151,373.41 × 59,389.88
  4. Step 4: Simplify right side
    109,690.88x = 8,990,047,749.75
  5. Step 5: Solve for x
    x = 8,990,047,749.75/109,690.88
  6. Step 6: Final answer
    x = 81,958.03

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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.