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Finding the Fourth Proportional to 369,427.16, 554,239.42 and 132,771.89

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Solution

The fourth proportional to 369,427.16, 554,239.42 and 132,771.89 is: 199,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,427.16 : 554,239.42 = 132,771.89 : x
  2. Step 2: Convert to fraction form
    369,427.16/554,239.42 = 132,771.89/x
  3. Step 3: Cross multiply
    369,427.16x = 554,239.42 × 132,771.89
  4. Step 4: Simplify right side
    369,427.16x = 73,587,412,202.78
  5. Step 5: Solve for x
    x = 73,587,412,202.78/369,427.16
  6. Step 6: Final answer
    x = 199,193.29

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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.