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Finding the Fourth Proportional to 217,007, 325,687.08 and 111,856.04

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Solution

The fourth proportional to 217,007, 325,687.08 and 111,856.04 is: 167,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,007 : 325,687.08 = 111,856.04 : x
  2. Step 2: Convert to fraction form
    217,007/325,687.08 = 111,856.04/x
  3. Step 3: Cross multiply
    217,007x = 325,687.08 × 111,856.04
  4. Step 4: Simplify right side
    217,007x = 36,430,067,047.96
  5. Step 5: Solve for x
    x = 36,430,067,047.96/217,007
  6. Step 6: Final answer
    x = 167,875.08

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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.