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Finding the Fourth Proportional to 281,570.00, 388,576.31 and 154,245.60

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Solution

The fourth proportional to 281,570.00, 388,576.31 and 154,245.60 is: 212,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,570.00 : 388,576.31 = 154,245.60 : x
  2. Step 2: Convert to fraction form
    281,570.00/388,576.31 = 154,245.60/x
  3. Step 3: Cross multiply
    281,570.00x = 388,576.31 × 154,245.60
  4. Step 4: Simplify right side
    281,570.00x = 59,936,185,310.51
  5. Step 5: Solve for x
    x = 59,936,185,310.51/281,570.00
  6. Step 6: Final answer
    x = 212,864.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.