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Finding the Fourth Proportional to 148,245.70, 207,958.70 and 148,245.70

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Solution

The fourth proportional to 148,245.70, 207,958.70 and 148,245.70 is: 207,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,245.70 : 207,958.70 = 148,245.70 : x
  2. Step 2: Convert to fraction form
    148,245.70/207,958.70 = 148,245.70/x
  3. Step 3: Cross multiply
    148,245.70x = 207,958.70 × 148,245.70
  4. Step 4: Simplify right side
    148,245.70x = 30,828,983,052.59
  5. Step 5: Solve for x
    x = 30,828,983,052.59/148,245.70
  6. Step 6: Final answer
    x = 207,958.70

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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.