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Finding the Fourth Proportional to 163,278.80, 244,918.20 and 161,723.60

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Solution

The fourth proportional to 163,278.80, 244,918.20 and 161,723.60 is: 242,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,278.80 : 244,918.20 = 161,723.60 : x
  2. Step 2: Convert to fraction form
    163,278.80/244,918.20 = 161,723.60/x
  3. Step 3: Cross multiply
    163,278.80x = 244,918.20 × 161,723.60
  4. Step 4: Simplify right side
    163,278.80x = 39,609,053,009.52
  5. Step 5: Solve for x
    x = 39,609,053,009.52/163,278.80
  6. Step 6: Final answer
    x = 242,585.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.