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Finding the Fourth Proportional to 223,661.44, 308,767.08 and 172,559.44

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Solution

The fourth proportional to 223,661.44, 308,767.08 and 172,559.44 is: 238,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,661.44 : 308,767.08 = 172,559.44 : x
  2. Step 2: Convert to fraction form
    223,661.44/308,767.08 = 172,559.44/x
  3. Step 3: Cross multiply
    223,661.44x = 308,767.08 × 172,559.44
  4. Step 4: Simplify right side
    223,661.44x = 53,280,674,415.24
  5. Step 5: Solve for x
    x = 53,280,674,415.24/223,661.44
  6. Step 6: Final answer
    x = 238,220.21

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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.