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Finding the Fourth Proportional to 199,558.01, 275,317.85 and 153,631.69

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Solution

The fourth proportional to 199,558.01, 275,317.85 and 153,631.69 is: 211,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,558.01 : 275,317.85 = 153,631.69 : x
  2. Step 2: Convert to fraction form
    199,558.01/275,317.85 = 153,631.69/x
  3. Step 3: Cross multiply
    199,558.01x = 275,317.85 × 153,631.69
  4. Step 4: Simplify right side
    199,558.01x = 42,297,546,278.45
  5. Step 5: Solve for x
    x = 42,297,546,278.45/199,558.01
  6. Step 6: Final answer
    x = 211,956.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.