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Finding the Fourth Proportional to 70,146.80, 96,796.31 and 43,297.95

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Solution

The fourth proportional to 70,146.80, 96,796.31 and 43,297.95 is: 59,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,146.80 : 96,796.31 = 43,297.95 : x
  2. Step 2: Convert to fraction form
    70,146.80/96,796.31 = 43,297.95/x
  3. Step 3: Cross multiply
    70,146.80x = 96,796.31 × 43,297.95
  4. Step 4: Simplify right side
    70,146.80x = 4,191,081,574.07
  5. Step 5: Solve for x
    x = 4,191,081,574.07/70,146.80
  6. Step 6: Final answer
    x = 59,747.30

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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.