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Finding the Fourth Proportional to 109,526.85, 149,119.49 and 109,189.49

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Solution

The fourth proportional to 109,526.85, 149,119.49 and 109,189.49 is: 148,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,526.85 : 149,119.49 = 109,189.49 : x
  2. Step 2: Convert to fraction form
    109,526.85/149,119.49 = 109,189.49/x
  3. Step 3: Cross multiply
    109,526.85x = 149,119.49 × 109,189.49
  4. Step 4: Simplify right side
    109,526.85x = 16,282,280,912.42
  5. Step 5: Solve for x
    x = 16,282,280,912.42/109,526.85
  6. Step 6: Final answer
    x = 148,660.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.