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Finding the Fourth Proportional to 354,828.54, 532,250.37 and 127,139.03

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Solution

The fourth proportional to 354,828.54, 532,250.37 and 127,139.03 is: 190,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,828.54 : 532,250.37 = 127,139.03 : x
  2. Step 2: Convert to fraction form
    354,828.54/532,250.37 = 127,139.03/x
  3. Step 3: Cross multiply
    354,828.54x = 532,250.37 × 127,139.03
  4. Step 4: Simplify right side
    354,828.54x = 67,669,795,758.94
  5. Step 5: Solve for x
    x = 67,669,795,758.94/354,828.54
  6. Step 6: Final answer
    x = 190,711.25

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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.