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Finding the Fourth Proportional to 101,927.23, 140,729.95 and 63,703.96

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Solution

The fourth proportional to 101,927.23, 140,729.95 and 63,703.96 is: 87,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.23 : 140,729.95 = 63,703.96 : x
  2. Step 2: Convert to fraction form
    101,927.23/140,729.95 = 63,703.96/x
  3. Step 3: Cross multiply
    101,927.23x = 140,729.95 × 63,703.96
  4. Step 4: Simplify right side
    101,927.23x = 8,965,055,105.60
  5. Step 5: Solve for x
    x = 8,965,055,105.60/101,927.23
  6. Step 6: Final answer
    x = 87,955.45

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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.