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Finding the Fourth Proportional to 149,740.60, 224,610.90 and 79,756.60

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Solution

The fourth proportional to 149,740.60, 224,610.90 and 79,756.60 is: 119,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,740.60 : 224,610.90 = 79,756.60 : x
  2. Step 2: Convert to fraction form
    149,740.60/224,610.90 = 79,756.60/x
  3. Step 3: Cross multiply
    149,740.60x = 224,610.90 × 79,756.60
  4. Step 4: Simplify right side
    149,740.60x = 17,914,201,706.94
  5. Step 5: Solve for x
    x = 17,914,201,706.94/149,740.60
  6. Step 6: Final answer
    x = 119,634.90

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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.