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Finding the Fourth Proportional to 183,902.40, 275,853.60 and 99,921.60

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Solution

The fourth proportional to 183,902.40, 275,853.60 and 99,921.60 is: 149,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,902.40 : 275,853.60 = 99,921.60 : x
  2. Step 2: Convert to fraction form
    183,902.40/275,853.60 = 99,921.60/x
  3. Step 3: Cross multiply
    183,902.40x = 275,853.60 × 99,921.60
  4. Step 4: Simplify right side
    183,902.40x = 27,563,733,077.76
  5. Step 5: Solve for x
    x = 27,563,733,077.76/183,902.40
  6. Step 6: Final answer
    x = 149,882.40

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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.