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Finding the Fourth Proportional to 203,460.66, 305,092.58 and 70,294.23

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Solution

The fourth proportional to 203,460.66, 305,092.58 and 70,294.23 is: 105,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,460.66 : 305,092.58 = 70,294.23 : x
  2. Step 2: Convert to fraction form
    203,460.66/305,092.58 = 70,294.23/x
  3. Step 3: Cross multiply
    203,460.66x = 305,092.58 × 70,294.23
  4. Step 4: Simplify right side
    203,460.66x = 21,446,247,638.34
  5. Step 5: Solve for x
    x = 21,446,247,638.34/203,460.66
  6. Step 6: Final answer
    x = 105,407.34

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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.