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Finding the Fourth Proportional to 189,621.70, 284,760.60 and 101,048.20

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Solution

The fourth proportional to 189,621.70, 284,760.60 and 101,048.20 is: 151,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,621.70 : 284,760.60 = 101,048.20 : x
  2. Step 2: Convert to fraction form
    189,621.70/284,760.60 = 101,048.20/x
  3. Step 3: Cross multiply
    189,621.70x = 284,760.60 × 101,048.20
  4. Step 4: Simplify right side
    189,621.70x = 28,774,546,060.92
  5. Step 5: Solve for x
    x = 28,774,546,060.92/189,621.70
  6. Step 6: Final answer
    x = 151,747.12

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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.