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Finding the Fourth Proportional to 101,669.01, 140,269.62 and 61,367.46

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Solution

The fourth proportional to 101,669.01, 140,269.62 and 61,367.46 is: 84,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,669.01 : 140,269.62 = 61,367.46 : x
  2. Step 2: Convert to fraction form
    101,669.01/140,269.62 = 61,367.46/x
  3. Step 3: Cross multiply
    101,669.01x = 140,269.62 × 61,367.46
  4. Step 4: Simplify right side
    101,669.01x = 8,607,990,294.57
  5. Step 5: Solve for x
    x = 8,607,990,294.57/101,669.01
  6. Step 6: Final answer
    x = 84,666.81

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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.