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Finding the Fourth Proportional to 131,522.40, 197,672.40 and 114,415.20

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Solution

The fourth proportional to 131,522.40, 197,672.40 and 114,415.20 is: 171,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,522.40 : 197,672.40 = 114,415.20 : x
  2. Step 2: Convert to fraction form
    131,522.40/197,672.40 = 114,415.20/x
  3. Step 3: Cross multiply
    131,522.40x = 197,672.40 × 114,415.20
  4. Step 4: Simplify right side
    131,522.40x = 22,616,727,180.48
  5. Step 5: Solve for x
    x = 22,616,727,180.48/131,522.40
  6. Step 6: Final answer
    x = 171,961.03

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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.