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Finding the Fourth Proportional to 113,175.25, 169,799.70 and 54,003.25

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Solution

The fourth proportional to 113,175.25, 169,799.70 and 54,003.25 is: 81,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,175.25 : 169,799.70 = 54,003.25 : x
  2. Step 2: Convert to fraction form
    113,175.25/169,799.70 = 54,003.25/x
  3. Step 3: Cross multiply
    113,175.25x = 169,799.70 × 54,003.25
  4. Step 4: Simplify right side
    113,175.25x = 9,169,735,649.03
  5. Step 5: Solve for x
    x = 9,169,735,649.03/113,175.25
  6. Step 6: Final answer
    x = 81,022.45

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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.