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Finding the Fourth Proportional to 181,190.97, 250,025.27 and 105,783.21

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Solution

The fourth proportional to 181,190.97, 250,025.27 and 105,783.21 is: 145,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,190.97 : 250,025.27 = 105,783.21 : x
  2. Step 2: Convert to fraction form
    181,190.97/250,025.27 = 105,783.21/x
  3. Step 3: Cross multiply
    181,190.97x = 250,025.27 × 105,783.21
  4. Step 4: Simplify right side
    181,190.97x = 26,448,475,112.80
  5. Step 5: Solve for x
    x = 26,448,475,112.80/181,190.97
  6. Step 6: Final answer
    x = 145,970.16

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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.