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Finding the Fourth Proportional to 148,905.30, 223,357.95 and 141,993.30

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Solution

The fourth proportional to 148,905.30, 223,357.95 and 141,993.30 is: 212,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,905.30 : 223,357.95 = 141,993.30 : x
  2. Step 2: Convert to fraction form
    148,905.30/223,357.95 = 141,993.30/x
  3. Step 3: Cross multiply
    148,905.30x = 223,357.95 × 141,993.30
  4. Step 4: Simplify right side
    148,905.30x = 31,715,332,401.74
  5. Step 5: Solve for x
    x = 31,715,332,401.74/148,905.30
  6. Step 6: Final answer
    x = 212,989.95

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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.