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Finding the Fourth Proportional to 193,445.01, 266,885.67 and 126,415.89

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Solution

The fourth proportional to 193,445.01, 266,885.67 and 126,415.89 is: 174,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,445.01 : 266,885.67 = 126,415.89 : x
  2. Step 2: Convert to fraction form
    193,445.01/266,885.67 = 126,415.89/x
  3. Step 3: Cross multiply
    193,445.01x = 266,885.67 × 126,415.89
  4. Step 4: Simplify right side
    193,445.01x = 33,738,589,501.30
  5. Step 5: Solve for x
    x = 33,738,589,501.30/193,445.01
  6. Step 6: Final answer
    x = 174,409.20

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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.