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Finding the Fourth Proportional to 183,963.40, 275,945.10 and 154,220.20

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Solution

The fourth proportional to 183,963.40, 275,945.10 and 154,220.20 is: 231,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,963.40 : 275,945.10 = 154,220.20 : x
  2. Step 2: Convert to fraction form
    183,963.40/275,945.10 = 154,220.20/x
  3. Step 3: Cross multiply
    183,963.40x = 275,945.10 × 154,220.20
  4. Step 4: Simplify right side
    183,963.40x = 42,556,308,511.02
  5. Step 5: Solve for x
    x = 42,556,308,511.02/183,963.40
  6. Step 6: Final answer
    x = 231,330.30

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1.5x scale

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.