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Finding the Fourth Proportional to 149,940.66, 224,799.87 and 90,762.33

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Solution

The fourth proportional to 149,940.66, 224,799.87 and 90,762.33 is: 136,076.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,940.66 : 224,799.87 = 90,762.33 : x
  2. Step 2: Convert to fraction form
    149,940.66/224,799.87 = 90,762.33/x
  3. Step 3: Cross multiply
    149,940.66x = 224,799.87 × 90,762.33
  4. Step 4: Simplify right side
    149,940.66x = 20,403,359,984.90
  5. Step 5: Solve for x
    x = 20,403,359,984.90/149,940.66
  6. Step 6: Final answer
    x = 136,076.23

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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.