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Finding the Fourth Proportional to 202,861.40, 304,292.10 and 84,617.60

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Solution

The fourth proportional to 202,861.40, 304,292.10 and 84,617.60 is: 126,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,861.40 : 304,292.10 = 84,617.60 : x
  2. Step 2: Convert to fraction form
    202,861.40/304,292.10 = 84,617.60/x
  3. Step 3: Cross multiply
    202,861.40x = 304,292.10 × 84,617.60
  4. Step 4: Simplify right side
    202,861.40x = 25,748,467,200.96
  5. Step 5: Solve for x
    x = 25,748,467,200.96/202,861.40
  6. Step 6: Final answer
    x = 126,926.40

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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.