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Finding the Fourth Proportional to 228,221.80, 342,332.70 and 148,906.60

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Solution

The fourth proportional to 228,221.80, 342,332.70 and 148,906.60 is: 223,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,221.80 : 342,332.70 = 148,906.60 : x
  2. Step 2: Convert to fraction form
    228,221.80/342,332.70 = 148,906.60/x
  3. Step 3: Cross multiply
    228,221.80x = 342,332.70 × 148,906.60
  4. Step 4: Simplify right side
    228,221.80x = 50,975,598,425.82
  5. Step 5: Solve for x
    x = 50,975,598,425.82/228,221.80
  6. Step 6: Final answer
    x = 223,359.90

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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.