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Finding the Fourth Proportional to 83,681.44, 115,481.30 and 45,955.69

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Solution

The fourth proportional to 83,681.44, 115,481.30 and 45,955.69 is: 63,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,681.44 : 115,481.30 = 45,955.69 : x
  2. Step 2: Convert to fraction form
    83,681.44/115,481.30 = 45,955.69/x
  3. Step 3: Cross multiply
    83,681.44x = 115,481.30 × 45,955.69
  4. Step 4: Simplify right side
    83,681.44x = 5,307,022,305.12
  5. Step 5: Solve for x
    x = 5,307,022,305.12/83,681.44
  6. Step 6: Final answer
    x = 63,419.35

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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.