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Finding the Fourth Proportional to 167,542.40, 251,313.60 and 128,176.40

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Solution

The fourth proportional to 167,542.40, 251,313.60 and 128,176.40 is: 192,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,542.40 : 251,313.60 = 128,176.40 : x
  2. Step 2: Convert to fraction form
    167,542.40/251,313.60 = 128,176.40/x
  3. Step 3: Cross multiply
    167,542.40x = 251,313.60 × 128,176.40
  4. Step 4: Simplify right side
    167,542.40x = 32,212,472,519.04
  5. Step 5: Solve for x
    x = 32,212,472,519.04/167,542.40
  6. Step 6: Final answer
    x = 192,264.60

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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.