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Finding the Fourth Proportional to 97,704.80, 134,833.20 and 55,260.80

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Solution

The fourth proportional to 97,704.80, 134,833.20 and 55,260.80 is: 76,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,704.80 : 134,833.20 = 55,260.80 : x
  2. Step 2: Convert to fraction form
    97,704.80/134,833.20 = 55,260.80/x
  3. Step 3: Cross multiply
    97,704.80x = 134,833.20 × 55,260.80
  4. Step 4: Simplify right side
    97,704.80x = 7,450,990,498.56
  5. Step 5: Solve for x
    x = 7,450,990,498.56/97,704.80
  6. Step 6: Final answer
    x = 76,260.23

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1.5x scale

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.