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Finding the Fourth Proportional to 189,852.60, 284,433.30 and 154,601.40

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Solution

The fourth proportional to 189,852.60, 284,433.30 and 154,601.40 is: 231,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,852.60 : 284,433.30 = 154,601.40 : x
  2. Step 2: Convert to fraction form
    189,852.60/284,433.30 = 154,601.40/x
  3. Step 3: Cross multiply
    189,852.60x = 284,433.30 × 154,601.40
  4. Step 4: Simplify right side
    189,852.60x = 43,973,786,386.62
  5. Step 5: Solve for x
    x = 43,973,786,386.62/189,852.60
  6. Step 6: Final answer
    x = 231,620.67

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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.