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Finding the Fourth Proportional to 122,596.79, 169,162.25 and 68,884.07

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Solution

The fourth proportional to 122,596.79, 169,162.25 and 68,884.07 is: 95,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,596.79 : 169,162.25 = 68,884.07 : x
  2. Step 2: Convert to fraction form
    122,596.79/169,162.25 = 68,884.07/x
  3. Step 3: Cross multiply
    122,596.79x = 169,162.25 × 68,884.07
  4. Step 4: Simplify right side
    122,596.79x = 11,652,584,225.40
  5. Step 5: Solve for x
    x = 11,652,584,225.40/122,596.79
  6. Step 6: Final answer
    x = 95,048.04

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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.