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Finding the Fourth Proportional to 169,213.70, 233,515.16 and 92,720.64

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Solution

The fourth proportional to 169,213.70, 233,515.16 and 92,720.64 is: 127,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,213.70 : 233,515.16 = 92,720.64 : x
  2. Step 2: Convert to fraction form
    169,213.70/233,515.16 = 92,720.64/x
  3. Step 3: Cross multiply
    169,213.70x = 233,515.16 × 92,720.64
  4. Step 4: Simplify right side
    169,213.70x = 21,651,675,084.90
  5. Step 5: Solve for x
    x = 21,651,675,084.90/169,213.70
  6. Step 6: Final answer
    x = 127,954.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.