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Finding the Fourth Proportional to 333,107.52, 499,427.52 and 122,718.40

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Solution

The fourth proportional to 333,107.52, 499,427.52 and 122,718.40 is: 183,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,107.52 : 499,427.52 = 122,718.40 : x
  2. Step 2: Convert to fraction form
    333,107.52/499,427.52 = 122,718.40/x
  3. Step 3: Cross multiply
    333,107.52x = 499,427.52 × 122,718.40
  4. Step 4: Simplify right side
    333,107.52x = 61,288,946,170.37
  5. Step 5: Solve for x
    x = 61,288,946,170.37/333,107.52
  6. Step 6: Final answer
    x = 183,991.48

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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.