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Finding the Fourth Proportional to 207,602.28, 311,403.60 and 148,553.28

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Solution

The fourth proportional to 207,602.28, 311,403.60 and 148,553.28 is: 222,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,602.28 : 311,403.60 = 148,553.28 : x
  2. Step 2: Convert to fraction form
    207,602.28/311,403.60 = 148,553.28/x
  3. Step 3: Cross multiply
    207,602.28x = 311,403.60 × 148,553.28
  4. Step 4: Simplify right side
    207,602.28x = 46,260,026,183.81
  5. Step 5: Solve for x
    x = 46,260,026,183.81/207,602.28
  6. Step 6: Final answer
    x = 222,830.05

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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.