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Finding the Fourth Proportional to 114,287.60, 171,431.40 and 31,181.60

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Solution

The fourth proportional to 114,287.60, 171,431.40 and 31,181.60 is: 46,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,287.60 : 171,431.40 = 31,181.60 : x
  2. Step 2: Convert to fraction form
    114,287.60/171,431.40 = 31,181.60/x
  3. Step 3: Cross multiply
    114,287.60x = 171,431.40 × 31,181.60
  4. Step 4: Simplify right side
    114,287.60x = 5,345,505,342.24
  5. Step 5: Solve for x
    x = 5,345,505,342.24/114,287.60
  6. Step 6: Final answer
    x = 46,772.40

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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.