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Finding the Fourth Proportional to 168,557.80, 252,836.70 and 154,123.60

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Solution

The fourth proportional to 168,557.80, 252,836.70 and 154,123.60 is: 231,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,557.80 : 252,836.70 = 154,123.60 : x
  2. Step 2: Convert to fraction form
    168,557.80/252,836.70 = 154,123.60/x
  3. Step 3: Cross multiply
    168,557.80x = 252,836.70 × 154,123.60
  4. Step 4: Simplify right side
    168,557.80x = 38,968,102,416.12
  5. Step 5: Solve for x
    x = 38,968,102,416.12/168,557.80
  6. Step 6: Final answer
    x = 231,185.40

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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.