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Finding the Fourth Proportional to 134,438.80, 201,658.20 and 55,609.60

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Solution

The fourth proportional to 134,438.80, 201,658.20 and 55,609.60 is: 83,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,438.80 : 201,658.20 = 55,609.60 : x
  2. Step 2: Convert to fraction form
    134,438.80/201,658.20 = 55,609.60/x
  3. Step 3: Cross multiply
    134,438.80x = 201,658.20 × 55,609.60
  4. Step 4: Simplify right side
    134,438.80x = 11,214,131,838.72
  5. Step 5: Solve for x
    x = 11,214,131,838.72/134,438.80
  6. Step 6: Final answer
    x = 83,414.40

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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.