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Finding the Fourth Proportional to 164,428.80, 246,643.20 and 114,662.40

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Solution

The fourth proportional to 164,428.80, 246,643.20 and 114,662.40 is: 171,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,428.80 : 246,643.20 = 114,662.40 : x
  2. Step 2: Convert to fraction form
    164,428.80/246,643.20 = 114,662.40/x
  3. Step 3: Cross multiply
    164,428.80x = 246,643.20 × 114,662.40
  4. Step 4: Simplify right side
    164,428.80x = 28,280,701,255.68
  5. Step 5: Solve for x
    x = 28,280,701,255.68/164,428.80
  6. Step 6: Final answer
    x = 171,993.60

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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.