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Finding the Fourth Proportional to 127,327.60, 190,933.80 and 57,170.80

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Solution

The fourth proportional to 127,327.60, 190,933.80 and 57,170.80 is: 85,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,327.60 : 190,933.80 = 57,170.80 : x
  2. Step 2: Convert to fraction form
    127,327.60/190,933.80 = 57,170.80/x
  3. Step 3: Cross multiply
    127,327.60x = 190,933.80 × 57,170.80
  4. Step 4: Simplify right side
    127,327.60x = 10,915,838,093.04
  5. Step 5: Solve for x
    x = 10,915,838,093.04/127,327.60
  6. Step 6: Final answer
    x = 85,730.34

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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.