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Finding the Fourth Proportional to 605,089.36, 907,422.45 and 178,511.90

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Solution

The fourth proportional to 605,089.36, 907,422.45 and 178,511.90 is: 267,705.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,089.36 : 907,422.45 = 178,511.90 : x
  2. Step 2: Convert to fraction form
    605,089.36/907,422.45 = 178,511.90/x
  3. Step 3: Cross multiply
    605,089.36x = 907,422.45 × 178,511.90
  4. Step 4: Simplify right side
    605,089.36x = 161,985,705,549.87
  5. Step 5: Solve for x
    x = 161,985,705,549.87/605,089.36
  6. Step 6: Final answer
    x = 267,705.43

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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.