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Finding the Fourth Proportional to 290,572.23, 401,000.00 and 163,245.27

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Solution

The fourth proportional to 290,572.23, 401,000.00 and 163,245.27 is: 225,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,572.23 : 401,000.00 = 163,245.27 : x
  2. Step 2: Convert to fraction form
    290,572.23/401,000.00 = 163,245.27/x
  3. Step 3: Cross multiply
    290,572.23x = 401,000.00 × 163,245.27
  4. Step 4: Simplify right side
    290,572.23x = 65,461,352,453.77
  5. Step 5: Solve for x
    x = 65,461,352,453.77/290,572.23
  6. Step 6: Final answer
    x = 225,284.27

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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.