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Finding the Fourth Proportional to 122,846.34, 169,551.15 and 76,927.29

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Solution

The fourth proportional to 122,846.34, 169,551.15 and 76,927.29 is: 106,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,846.34 : 169,551.15 = 76,927.29 : x
  2. Step 2: Convert to fraction form
    122,846.34/169,551.15 = 76,927.29/x
  3. Step 3: Cross multiply
    122,846.34x = 169,551.15 × 76,927.29
  4. Step 4: Simplify right side
    122,846.34x = 13,043,110,485.88
  5. Step 5: Solve for x
    x = 13,043,110,485.88/122,846.34
  6. Step 6: Final answer
    x = 106,174.19

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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.