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Finding the Fourth Proportional to 605,018.56, 907,316.18 and 178,441.20

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Solution

The fourth proportional to 605,018.56, 907,316.18 and 178,441.20 is: 267,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,018.56 : 907,316.18 = 178,441.20 : x
  2. Step 2: Convert to fraction form
    605,018.56/907,316.18 = 178,441.20/x
  3. Step 3: Cross multiply
    605,018.56x = 907,316.18 × 178,441.20
  4. Step 4: Simplify right side
    605,018.56x = 161,902,587,938.62
  5. Step 5: Solve for x
    x = 161,902,587,938.62/605,018.56
  6. Step 6: Final answer
    x = 267,599.37

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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.