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Finding the Fourth Proportional to 160,728.72, 240,956.94 and 98,268

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Solution

The fourth proportional to 160,728.72, 240,956.94 and 98,268 is: 147,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,728.72 : 240,956.94 = 98,268 : x
  2. Step 2: Convert to fraction form
    160,728.72/240,956.94 = 98,268/x
  3. Step 3: Cross multiply
    160,728.72x = 240,956.94 × 98,268
  4. Step 4: Simplify right side
    160,728.72x = 23,678,356,579.92
  5. Step 5: Solve for x
    x = 23,678,356,579.92/160,728.72
  6. Step 6: Final answer
    x = 147,318.77

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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.