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Finding the Fourth Proportional to 122,062.79, 168,442.74 and 67,612.73

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Solution

The fourth proportional to 122,062.79, 168,442.74 and 67,612.73 is: 93,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,062.79 : 168,442.74 = 67,612.73 : x
  2. Step 2: Convert to fraction form
    122,062.79/168,442.74 = 67,612.73/x
  3. Step 3: Cross multiply
    122,062.79x = 168,442.74 × 67,612.73
  4. Step 4: Simplify right side
    122,062.79x = 11,388,873,190.83
  5. Step 5: Solve for x
    x = 11,388,873,190.83/122,062.79
  6. Step 6: Final answer
    x = 93,303.40

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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.