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Finding the Fourth Proportional to 149,999.60, 224,934.60 and 75,090.80

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Solution

The fourth proportional to 149,999.60, 224,934.60 and 75,090.80 is: 112,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.60 : 224,934.60 = 75,090.80 : x
  2. Step 2: Convert to fraction form
    149,999.60/224,934.60 = 75,090.80/x
  3. Step 3: Cross multiply
    149,999.60x = 224,934.60 × 75,090.80
  4. Step 4: Simplify right side
    149,999.60x = 16,890,519,061.68
  5. Step 5: Solve for x
    x = 16,890,519,061.68/149,999.60
  6. Step 6: Final answer
    x = 112,603.76

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1.5x scale

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.