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Finding the Fourth Proportional to 122,607.68, 169,195.92 and 68,156.24

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Solution

The fourth proportional to 122,607.68, 169,195.92 and 68,156.24 is: 94,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,607.68 : 169,195.92 = 68,156.24 : x
  2. Step 2: Convert to fraction form
    122,607.68/169,195.92 = 68,156.24/x
  3. Step 3: Cross multiply
    122,607.68x = 169,195.92 × 68,156.24
  4. Step 4: Simplify right side
    122,607.68x = 11,531,757,730.54
  5. Step 5: Solve for x
    x = 11,531,757,730.54/122,607.68
  6. Step 6: Final answer
    x = 94,054.12

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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.