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Finding the Fourth Proportional to 53,903.40, 80,855.10 and 52,367.40

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Solution

The fourth proportional to 53,903.40, 80,855.10 and 52,367.40 is: 78,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,903.40 : 80,855.10 = 52,367.40 : x
  2. Step 2: Convert to fraction form
    53,903.40/80,855.10 = 52,367.40/x
  3. Step 3: Cross multiply
    53,903.40x = 80,855.10 × 52,367.40
  4. Step 4: Simplify right side
    53,903.40x = 4,234,171,363.74
  5. Step 5: Solve for x
    x = 4,234,171,363.74/53,903.40
  6. Step 6: Final answer
    x = 78,551.10

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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.