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Finding the Fourth Proportional to 237,321.40, 355,982.10 and 148,847.80

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Solution

The fourth proportional to 237,321.40, 355,982.10 and 148,847.80 is: 223,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,321.40 : 355,982.10 = 148,847.80 : x
  2. Step 2: Convert to fraction form
    237,321.40/355,982.10 = 148,847.80/x
  3. Step 3: Cross multiply
    237,321.40x = 355,982.10 × 148,847.80
  4. Step 4: Simplify right side
    237,321.40x = 52,987,152,424.38
  5. Step 5: Solve for x
    x = 52,987,152,424.38/237,321.40
  6. Step 6: Final answer
    x = 223,271.70

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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.