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Finding the Fourth Proportional to 223,189.44, 308,020.42 and 126,410.51

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Solution

The fourth proportional to 223,189.44, 308,020.42 and 126,410.51 is: 174,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,189.44 : 308,020.42 = 126,410.51 : x
  2. Step 2: Convert to fraction form
    223,189.44/308,020.42 = 126,410.51/x
  3. Step 3: Cross multiply
    223,189.44x = 308,020.42 × 126,410.51
  4. Step 4: Simplify right side
    223,189.44x = 38,937,018,382.61
  5. Step 5: Solve for x
    x = 38,937,018,382.61/223,189.44
  6. Step 6: Final answer
    x = 174,457.26

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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.