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Finding the Fourth Proportional to 354,365.56, 531,548.36 and 144,019.92

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Solution

The fourth proportional to 354,365.56, 531,548.36 and 144,019.92 is: 216,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,365.56 : 531,548.36 = 144,019.92 : x
  2. Step 2: Convert to fraction form
    354,365.56/531,548.36 = 144,019.92/x
  3. Step 3: Cross multiply
    354,365.56x = 531,548.36 × 144,019.92
  4. Step 4: Simplify right side
    354,365.56x = 76,553,552,283.33
  5. Step 5: Solve for x
    x = 76,553,552,283.33/354,365.56
  6. Step 6: Final answer
    x = 216,029.89

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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.