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Finding the Fourth Proportional to 163,187.98, 244,585.14 and 84,259.15

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Solution

The fourth proportional to 163,187.98, 244,585.14 and 84,259.15 is: 126,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,187.98 : 244,585.14 = 84,259.15 : x
  2. Step 2: Convert to fraction form
    163,187.98/244,585.14 = 84,259.15/x
  3. Step 3: Cross multiply
    163,187.98x = 244,585.14 × 84,259.15
  4. Step 4: Simplify right side
    163,187.98x = 20,608,535,999.03
  5. Step 5: Solve for x
    x = 20,608,535,999.03/163,187.98
  6. Step 6: Final answer
    x = 126,287.10

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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.