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Finding the Fourth Proportional to 171,772.40, 257,658.60 and 169,007.60

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Solution

The fourth proportional to 171,772.40, 257,658.60 and 169,007.60 is: 253,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,772.40 : 257,658.60 = 169,007.60 : x
  2. Step 2: Convert to fraction form
    171,772.40/257,658.60 = 169,007.60/x
  3. Step 3: Cross multiply
    171,772.40x = 257,658.60 × 169,007.60
  4. Step 4: Simplify right side
    171,772.40x = 43,546,261,605.36
  5. Step 5: Solve for x
    x = 43,546,261,605.36/171,772.40
  6. Step 6: Final answer
    x = 253,511.40

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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.