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Finding the Fourth Proportional to 223,717.68, 308,730.22 and 123,115.68

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Solution

The fourth proportional to 223,717.68, 308,730.22 and 123,115.68 is: 169,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,717.68 : 308,730.22 = 123,115.68 : x
  2. Step 2: Convert to fraction form
    223,717.68/308,730.22 = 123,115.68/x
  3. Step 3: Cross multiply
    223,717.68x = 308,730.22 × 123,115.68
  4. Step 4: Simplify right side
    223,717.68x = 38,009,530,971.85
  5. Step 5: Solve for x
    x = 38,009,530,971.85/223,717.68
  6. Step 6: Final answer
    x = 169,899.54

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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.