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Finding the Fourth Proportional to 155,625.60, 214,754.52 and 91,969.32

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Solution

The fourth proportional to 155,625.60, 214,754.52 and 91,969.32 is: 126,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,625.60 : 214,754.52 = 91,969.32 : x
  2. Step 2: Convert to fraction form
    155,625.60/214,754.52 = 91,969.32/x
  3. Step 3: Cross multiply
    155,625.60x = 214,754.52 × 91,969.32
  4. Step 4: Simplify right side
    155,625.60x = 19,750,827,171.33
  5. Step 5: Solve for x
    x = 19,750,827,171.33/155,625.60
  6. Step 6: Final answer
    x = 126,912.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.