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Finding the Fourth Proportional to 190,873.88, 263,416.88 and 105,996.41

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Solution

The fourth proportional to 190,873.88, 263,416.88 and 105,996.41 is: 146,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,873.88 : 263,416.88 = 105,996.41 : x
  2. Step 2: Convert to fraction form
    190,873.88/263,416.88 = 105,996.41/x
  3. Step 3: Cross multiply
    190,873.88x = 263,416.88 × 105,996.41
  4. Step 4: Simplify right side
    190,873.88x = 27,921,242,561.31
  5. Step 5: Solve for x
    x = 27,921,242,561.31/190,873.88
  6. Step 6: Final answer
    x = 146,281.11

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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.