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Finding the Fourth Proportional to 362,448.60, 543,739.77 and 119,303.40

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Solution

The fourth proportional to 362,448.60, 543,739.77 and 119,303.40 is: 178,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,448.60 : 543,739.77 = 119,303.40 : x
  2. Step 2: Convert to fraction form
    362,448.60/543,739.77 = 119,303.40/x
  3. Step 3: Cross multiply
    362,448.60x = 543,739.77 × 119,303.40
  4. Step 4: Simplify right side
    362,448.60x = 64,870,002,679.70
  5. Step 5: Solve for x
    x = 64,870,002,679.70/362,448.60
  6. Step 6: Final answer
    x = 178,977.11

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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.