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Finding the Fourth Proportional to 94,231.60, 130,040.32 and 51,790.80

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Solution

The fourth proportional to 94,231.60, 130,040.32 and 51,790.80 is: 71,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,231.60 : 130,040.32 = 51,790.80 : x
  2. Step 2: Convert to fraction form
    94,231.60/130,040.32 = 51,790.80/x
  3. Step 3: Cross multiply
    94,231.60x = 130,040.32 × 51,790.80
  4. Step 4: Simplify right side
    94,231.60x = 6,734,892,205.06
  5. Step 5: Solve for x
    x = 6,734,892,205.06/94,231.60
  6. Step 6: Final answer
    x = 71,471.70

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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.