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Finding the Fourth Proportional to 325,061.80, 487,471.44 and 111,769.36

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Solution

The fourth proportional to 325,061.80, 487,471.44 and 111,769.36 is: 167,612.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,061.80 : 487,471.44 = 111,769.36 : x
  2. Step 2: Convert to fraction form
    325,061.80/487,471.44 = 111,769.36/x
  3. Step 3: Cross multiply
    325,061.80x = 487,471.44 × 111,769.36
  4. Step 4: Simplify right side
    325,061.80x = 54,484,370,867.08
  5. Step 5: Solve for x
    x = 54,484,370,867.08/325,061.80
  6. Step 6: Final answer
    x = 167,612.35

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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.