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Finding the Fourth Proportional to 605,090.36, 907,423.95 and 178,512.90

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Solution

The fourth proportional to 605,090.36, 907,423.95 and 178,512.90 is: 267,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,090.36 : 907,423.95 = 178,512.90 : x
  2. Step 2: Convert to fraction form
    605,090.36/907,423.95 = 178,512.90/x
  3. Step 3: Cross multiply
    605,090.36x = 907,423.95 × 178,512.90
  4. Step 4: Simplify right side
    605,090.36x = 161,986,880,843.96
  5. Step 5: Solve for x
    x = 161,986,880,843.96/605,090.36
  6. Step 6: Final answer
    x = 267,706.93

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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.