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Finding the Fourth Proportional to 122,318.48, 168,796.84 and 68,602.32

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Solution

The fourth proportional to 122,318.48, 168,796.84 and 68,602.32 is: 94,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,318.48 : 168,796.84 = 68,602.32 : x
  2. Step 2: Convert to fraction form
    122,318.48/168,796.84 = 68,602.32/x
  3. Step 3: Cross multiply
    122,318.48x = 168,796.84 × 68,602.32
  4. Step 4: Simplify right side
    122,318.48x = 11,579,854,832.67
  5. Step 5: Solve for x
    x = 11,579,854,832.67/122,318.48
  6. Step 6: Final answer
    x = 94,669.71

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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.