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Finding the Fourth Proportional to 190,846.20, 286,269.30 and 91,054.20

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Solution

The fourth proportional to 190,846.20, 286,269.30 and 91,054.20 is: 136,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,846.20 : 286,269.30 = 91,054.20 : x
  2. Step 2: Convert to fraction form
    190,846.20/286,269.30 = 91,054.20/x
  3. Step 3: Cross multiply
    190,846.20x = 286,269.30 × 91,054.20
  4. Step 4: Simplify right side
    190,846.20x = 26,066,022,096.06
  5. Step 5: Solve for x
    x = 26,066,022,096.06/190,846.20
  6. Step 6: Final answer
    x = 136,581.30

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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.