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Finding the Fourth Proportional to 248,969.40, 373,043.70 and 143,604.60

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Solution

The fourth proportional to 248,969.40, 373,043.70 and 143,604.60 is: 215,170.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,969.40 : 373,043.70 = 143,604.60 : x
  2. Step 2: Convert to fraction form
    248,969.40/373,043.70 = 143,604.60/x
  3. Step 3: Cross multiply
    248,969.40x = 373,043.70 × 143,604.60
  4. Step 4: Simplify right side
    248,969.40x = 53,570,791,321.02
  5. Step 5: Solve for x
    x = 53,570,791,321.02/248,969.40
  6. Step 6: Final answer
    x = 215,170.18

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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.