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Finding the Fourth Proportional to 218,481.18, 301,503.24 and 122,988.12

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Solution

The fourth proportional to 218,481.18, 301,503.24 and 122,988.12 is: 169,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,481.18 : 301,503.24 = 122,988.12 : x
  2. Step 2: Convert to fraction form
    218,481.18/301,503.24 = 122,988.12/x
  3. Step 3: Cross multiply
    218,481.18x = 301,503.24 × 122,988.12
  4. Step 4: Simplify right side
    218,481.18x = 37,081,316,661.51
  5. Step 5: Solve for x
    x = 37,081,316,661.51/218,481.18
  6. Step 6: Final answer
    x = 169,723.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.