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Finding the Fourth Proportional to 297,638.64, 410,744.40 and 161,673.96

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Solution

The fourth proportional to 297,638.64, 410,744.40 and 161,673.96 is: 223,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,638.64 : 410,744.40 = 161,673.96 : x
  2. Step 2: Convert to fraction form
    297,638.64/410,744.40 = 161,673.96/x
  3. Step 3: Cross multiply
    297,638.64x = 410,744.40 × 161,673.96
  4. Step 4: Simplify right side
    297,638.64x = 66,406,673,695.82
  5. Step 5: Solve for x
    x = 66,406,673,695.82/297,638.64
  6. Step 6: Final answer
    x = 223,111.74

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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.