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Finding the Fourth Proportional to 101,475.65, 140,026.83 and 68,703.38

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Solution

The fourth proportional to 101,475.65, 140,026.83 and 68,703.38 is: 94,804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,475.65 : 140,026.83 = 68,703.38 : x
  2. Step 2: Convert to fraction form
    101,475.65/140,026.83 = 68,703.38/x
  3. Step 3: Cross multiply
    101,475.65x = 140,026.83 × 68,703.38
  4. Step 4: Simplify right side
    101,475.65x = 9,620,316,511.69
  5. Step 5: Solve for x
    x = 9,620,316,511.69/101,475.65
  6. Step 6: Final answer
    x = 94,804.19

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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.