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Finding the Fourth Proportional to 149,426.70, 209,352.90 and 149,426.70

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Solution

The fourth proportional to 149,426.70, 209,352.90 and 149,426.70 is: 209,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,426.70 : 209,352.90 = 149,426.70 : x
  2. Step 2: Convert to fraction form
    149,426.70/209,352.90 = 149,426.70/x
  3. Step 3: Cross multiply
    149,426.70x = 209,352.90 × 149,426.70
  4. Step 4: Simplify right side
    149,426.70x = 31,282,912,982.43
  5. Step 5: Solve for x
    x = 31,282,912,982.43/149,426.70
  6. Step 6: Final answer
    x = 209,352.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.