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Finding the Fourth Proportional to 149,250.40, 224,048.40 and 90,152.80

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Solution

The fourth proportional to 149,250.40, 224,048.40 and 90,152.80 is: 135,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,250.40 : 224,048.40 = 90,152.80 : x
  2. Step 2: Convert to fraction form
    149,250.40/224,048.40 = 90,152.80/x
  3. Step 3: Cross multiply
    149,250.40x = 224,048.40 × 90,152.80
  4. Step 4: Simplify right side
    149,250.40x = 20,198,590,595.52
  5. Step 5: Solve for x
    x = 20,198,590,595.52/149,250.40
  6. Step 6: Final answer
    x = 135,333.58

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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.