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Finding the Fourth Proportional to 168,957.75, 253,338.21 and 74,184.15

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Solution

The fourth proportional to 168,957.75, 253,338.21 and 74,184.15 is: 111,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,957.75 : 253,338.21 = 74,184.15 : x
  2. Step 2: Convert to fraction form
    168,957.75/253,338.21 = 74,184.15/x
  3. Step 3: Cross multiply
    168,957.75x = 253,338.21 × 74,184.15
  4. Step 4: Simplify right side
    168,957.75x = 18,793,679,771.37
  5. Step 5: Solve for x
    x = 18,793,679,771.37/168,957.75
  6. Step 6: Final answer
    x = 111,233.01

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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.