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Finding the Fourth Proportional to 122,658.96, 169,269.84 and 68,946.24

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Solution

The fourth proportional to 122,658.96, 169,269.84 and 68,946.24 is: 95,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658.96 : 169,269.84 = 68,946.24 : x
  2. Step 2: Convert to fraction form
    122,658.96/169,269.84 = 68,946.24/x
  3. Step 3: Cross multiply
    122,658.96x = 169,269.84 × 68,946.24
  4. Step 4: Simplify right side
    122,658.96x = 11,670,519,013.40
  5. Step 5: Solve for x
    x = 11,670,519,013.40/122,658.96
  6. Step 6: Final answer
    x = 95,146.08

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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.