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Finding the Fourth Proportional to 190,817.60, 286,226.40 and 48,662.60

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Solution

The fourth proportional to 190,817.60, 286,226.40 and 48,662.60 is: 72,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,817.60 : 286,226.40 = 48,662.60 : x
  2. Step 2: Convert to fraction form
    190,817.60/286,226.40 = 48,662.60/x
  3. Step 3: Cross multiply
    190,817.60x = 286,226.40 × 48,662.60
  4. Step 4: Simplify right side
    190,817.60x = 13,928,520,812.64
  5. Step 5: Solve for x
    x = 13,928,520,812.64/190,817.60
  6. Step 6: Final answer
    x = 72,993.90

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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.