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Finding the Fourth Proportional to 190,391.94, 285,682.08 and 90,526.22

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Solution

The fourth proportional to 190,391.94, 285,682.08 and 90,526.22 is: 135,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,391.94 : 285,682.08 = 90,526.22 : x
  2. Step 2: Convert to fraction form
    190,391.94/285,682.08 = 90,526.22/x
  3. Step 3: Cross multiply
    190,391.94x = 285,682.08 × 90,526.22
  4. Step 4: Simplify right side
    190,391.94x = 25,861,718,824.14
  5. Step 5: Solve for x
    x = 25,861,718,824.14/190,391.94
  6. Step 6: Final answer
    x = 135,834.11

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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.