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Finding the Fourth Proportional to 228,223.80, 342,335.70 and 148,908.60

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Solution

The fourth proportional to 228,223.80, 342,335.70 and 148,908.60 is: 223,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,223.80 : 342,335.70 = 148,908.60 : x
  2. Step 2: Convert to fraction form
    228,223.80/342,335.70 = 148,908.60/x
  3. Step 3: Cross multiply
    228,223.80x = 342,335.70 × 148,908.60
  4. Step 4: Simplify right side
    228,223.80x = 50,976,729,817.02
  5. Step 5: Solve for x
    x = 50,976,729,817.02/228,223.80
  6. Step 6: Final answer
    x = 223,362.90

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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.