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Finding the Fourth Proportional to 236,490.40, 355,145.20 and 166,858.40

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Solution

The fourth proportional to 236,490.40, 355,145.20 and 166,858.40 is: 250,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,490.40 : 355,145.20 = 166,858.40 : x
  2. Step 2: Convert to fraction form
    236,490.40/355,145.20 = 166,858.40/x
  3. Step 3: Cross multiply
    236,490.40x = 355,145.20 × 166,858.40
  4. Step 4: Simplify right side
    236,490.40x = 59,258,959,839.68
  5. Step 5: Solve for x
    x = 59,258,959,839.68/236,490.40
  6. Step 6: Final answer
    x = 250,576.60

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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.