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Finding the Fourth Proportional to 117,072.58, 161,560.16 and 63,357.60

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Solution

The fourth proportional to 117,072.58, 161,560.16 and 63,357.60 is: 87,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,072.58 : 161,560.16 = 63,357.60 : x
  2. Step 2: Convert to fraction form
    117,072.58/161,560.16 = 63,357.60/x
  3. Step 3: Cross multiply
    117,072.58x = 161,560.16 × 63,357.60
  4. Step 4: Simplify right side
    117,072.58x = 10,236,063,993.22
  5. Step 5: Solve for x
    x = 10,236,063,993.22/117,072.58
  6. Step 6: Final answer
    x = 87,433.49

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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.