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Finding the Fourth Proportional to 354,573.66, 531,745.02 and 117,852.78

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Solution

The fourth proportional to 354,573.66, 531,745.02 and 117,852.78 is: 176,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,573.66 : 531,745.02 = 117,852.78 : x
  2. Step 2: Convert to fraction form
    354,573.66/531,745.02 = 117,852.78/x
  3. Step 3: Cross multiply
    354,573.66x = 531,745.02 × 117,852.78
  4. Step 4: Simplify right side
    354,573.66x = 62,667,628,858.16
  5. Step 5: Solve for x
    x = 62,667,628,858.16/354,573.66
  6. Step 6: Final answer
    x = 176,740.79

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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.