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Finding the Fourth Proportional to 190,544.96, 262,939.56 and 105,659.12

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Solution

The fourth proportional to 190,544.96, 262,939.56 and 105,659.12 is: 145,802.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,544.96 : 262,939.56 = 105,659.12 : x
  2. Step 2: Convert to fraction form
    190,544.96/262,939.56 = 105,659.12/x
  3. Step 3: Cross multiply
    190,544.96x = 262,939.56 × 105,659.12
  4. Step 4: Simplify right side
    190,544.96x = 27,781,962,522.79
  5. Step 5: Solve for x
    x = 27,781,962,522.79/190,544.96
  6. Step 6: Final answer
    x = 145,802.66

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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.