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Finding the Fourth Proportional to 237,542.40, 355,816.80 and 111,290.40

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Solution

The fourth proportional to 237,542.40, 355,816.80 and 111,290.40 is: 166,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,542.40 : 355,816.80 = 111,290.40 : x
  2. Step 2: Convert to fraction form
    237,542.40/355,816.80 = 111,290.40/x
  3. Step 3: Cross multiply
    237,542.40x = 355,816.80 × 111,290.40
  4. Step 4: Simplify right side
    237,542.40x = 39,598,993,998.72
  5. Step 5: Solve for x
    x = 39,598,993,998.72/237,542.40
  6. Step 6: Final answer
    x = 166,702.85

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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.