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Finding the Fourth Proportional to 101,597.49, 140,209.55 and 61,310.56

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Solution

The fourth proportional to 101,597.49, 140,209.55 and 61,310.56 is: 84,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,597.49 : 140,209.55 = 61,310.56 : x
  2. Step 2: Convert to fraction form
    101,597.49/140,209.55 = 61,310.56/x
  3. Step 3: Cross multiply
    101,597.49x = 140,209.55 × 61,310.56
  4. Step 4: Simplify right side
    101,597.49x = 8,596,326,027.85
  5. Step 5: Solve for x
    x = 8,596,326,027.85/101,597.49
  6. Step 6: Final answer
    x = 84,611.60

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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.