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Finding the Fourth Proportional to 122,302.73, 168,785.07 and 68,590.73

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Solution

The fourth proportional to 122,302.73, 168,785.07 and 68,590.73 is: 94,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,302.73 : 168,785.07 = 68,590.73 : x
  2. Step 2: Convert to fraction form
    122,302.73/168,785.07 = 68,590.73/x
  3. Step 3: Cross multiply
    122,302.73x = 168,785.07 × 68,590.73
  4. Step 4: Simplify right side
    122,302.73x = 11,577,091,164.40
  5. Step 5: Solve for x
    x = 11,577,091,164.40/122,302.73
  6. Step 6: Final answer
    x = 94,659.30

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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.