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Finding the Fourth Proportional to 122,846.32, 169,525.96 and 69,131.32

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Solution

The fourth proportional to 122,846.32, 169,525.96 and 69,131.32 is: 95,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,846.32 : 169,525.96 = 69,131.32 : x
  2. Step 2: Convert to fraction form
    122,846.32/169,525.96 = 69,131.32/x
  3. Step 3: Cross multiply
    122,846.32x = 169,525.96 × 69,131.32
  4. Step 4: Simplify right side
    122,846.32x = 11,719,553,389.07
  5. Step 5: Solve for x
    x = 11,719,553,389.07/122,846.32
  6. Step 6: Final answer
    x = 95,400.12

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1.5x scale

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.