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Finding the Fourth Proportional to 102,826.40, 154,255.80 and 32,712.80

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Solution

The fourth proportional to 102,826.40, 154,255.80 and 32,712.80 is: 49,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,826.40 : 154,255.80 = 32,712.80 : x
  2. Step 2: Convert to fraction form
    102,826.40/154,255.80 = 32,712.80/x
  3. Step 3: Cross multiply
    102,826.40x = 154,255.80 × 32,712.80
  4. Step 4: Simplify right side
    102,826.40x = 5,046,139,134.24
  5. Step 5: Solve for x
    x = 5,046,139,134.24/102,826.40
  6. Step 6: Final answer
    x = 49,074.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.