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Finding the Fourth Proportional to 203,940.40, 305,916.63 and 97,335.59

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Solution

The fourth proportional to 203,940.40, 305,916.63 and 97,335.59 is: 146,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,940.40 : 305,916.63 = 97,335.59 : x
  2. Step 2: Convert to fraction form
    203,940.40/305,916.63 = 97,335.59/x
  3. Step 3: Cross multiply
    203,940.40x = 305,916.63 × 97,335.59
  4. Step 4: Simplify right side
    203,940.40x = 29,776,573,655.60
  5. Step 5: Solve for x
    x = 29,776,573,655.60/203,940.40
  6. Step 6: Final answer
    x = 146,006.26

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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.