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Finding the Fourth Proportional to 161,661.09, 223,144.01 and 104,302.02

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Solution

The fourth proportional to 161,661.09, 223,144.01 and 104,302.02 is: 143,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,661.09 : 223,144.01 = 104,302.02 : x
  2. Step 2: Convert to fraction form
    161,661.09/223,144.01 = 104,302.02/x
  3. Step 3: Cross multiply
    161,661.09x = 223,144.01 × 104,302.02
  4. Step 4: Simplify right side
    161,661.09x = 23,274,370,472.39
  5. Step 5: Solve for x
    x = 23,274,370,472.39/161,661.09
  6. Step 6: Final answer
    x = 143,970.14

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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.