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Finding the Fourth Proportional to 122,846.60, 169,526.26 and 69,131.60

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Solution

The fourth proportional to 122,846.60, 169,526.26 and 69,131.60 is: 95,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,846.60 : 169,526.26 = 69,131.60 : x
  2. Step 2: Convert to fraction form
    122,846.60/169,526.26 = 69,131.60/x
  3. Step 3: Cross multiply
    122,846.60x = 169,526.26 × 69,131.60
  4. Step 4: Simplify right side
    122,846.60x = 11,719,621,595.82
  5. Step 5: Solve for x
    x = 11,719,621,595.82/122,846.60
  6. Step 6: Final answer
    x = 95,400.46

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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.