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Finding the Fourth Proportional to 168,093.40, 251,880.90 and 145,802.20

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Solution

The fourth proportional to 168,093.40, 251,880.90 and 145,802.20 is: 218,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,093.40 : 251,880.90 = 145,802.20 : x
  2. Step 2: Convert to fraction form
    168,093.40/251,880.90 = 145,802.20/x
  3. Step 3: Cross multiply
    168,093.40x = 251,880.90 × 145,802.20
  4. Step 4: Simplify right side
    168,093.40x = 36,724,789,357.98
  5. Step 5: Solve for x
    x = 36,724,789,357.98/168,093.40
  6. Step 6: Final answer
    x = 218,478.47

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1.5x scale

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.