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Finding the Fourth Proportional to 49,621.60, 74,259.60 and 34,069.60

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Solution

The fourth proportional to 49,621.60, 74,259.60 and 34,069.60 is: 50,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,621.60 : 74,259.60 = 34,069.60 : x
  2. Step 2: Convert to fraction form
    49,621.60/74,259.60 = 34,069.60/x
  3. Step 3: Cross multiply
    49,621.60x = 74,259.60 × 34,069.60
  4. Step 4: Simplify right side
    49,621.60x = 2,529,994,868.16
  5. Step 5: Solve for x
    x = 2,529,994,868.16/49,621.60
  6. Step 6: Final answer
    x = 50,985.76

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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.