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Finding the Fourth Proportional to 127,310.40, 190,965.60 and 32,540.40

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Solution

The fourth proportional to 127,310.40, 190,965.60 and 32,540.40 is: 48,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,310.40 : 190,965.60 = 32,540.40 : x
  2. Step 2: Convert to fraction form
    127,310.40/190,965.60 = 32,540.40/x
  3. Step 3: Cross multiply
    127,310.40x = 190,965.60 × 32,540.40
  4. Step 4: Simplify right side
    127,310.40x = 6,214,097,010.24
  5. Step 5: Solve for x
    x = 6,214,097,010.24/127,310.40
  6. Step 6: Final answer
    x = 48,810.60

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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.