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Finding the Fourth Proportional to 117,891.40, 176,837.10 and 29,144.20

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Solution

The fourth proportional to 117,891.40, 176,837.10 and 29,144.20 is: 43,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,891.40 : 176,837.10 = 29,144.20 : x
  2. Step 2: Convert to fraction form
    117,891.40/176,837.10 = 29,144.20/x
  3. Step 3: Cross multiply
    117,891.40x = 176,837.10 × 29,144.20
  4. Step 4: Simplify right side
    117,891.40x = 5,153,775,809.82
  5. Step 5: Solve for x
    x = 5,153,775,809.82/117,891.40
  6. Step 6: Final answer
    x = 43,716.30

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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.