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Finding the Fourth Proportional to 366,989.40, 550,351.94 and 127,038.11

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Solution

The fourth proportional to 366,989.40, 550,351.94 and 127,038.11 is: 190,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.40 : 550,351.94 = 127,038.11 : x
  2. Step 2: Convert to fraction form
    366,989.40/550,351.94 = 127,038.11/x
  3. Step 3: Cross multiply
    366,989.40x = 550,351.94 × 127,038.11
  4. Step 4: Simplify right side
    366,989.40x = 69,915,666,905.48
  5. Step 5: Solve for x
    x = 69,915,666,905.48/366,989.40
  6. Step 6: Final answer
    x = 190,511.41

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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.