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Finding the Fourth Proportional to 324,278.64, 447,485.72 and 181,047.69

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Solution

The fourth proportional to 324,278.64, 447,485.72 and 181,047.69 is: 249,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,278.64 : 447,485.72 = 181,047.69 : x
  2. Step 2: Convert to fraction form
    324,278.64/447,485.72 = 181,047.69/x
  3. Step 3: Cross multiply
    324,278.64x = 447,485.72 × 181,047.69
  4. Step 4: Simplify right side
    324,278.64x = 81,016,255,008.75
  5. Step 5: Solve for x
    x = 81,016,255,008.75/324,278.64
  6. Step 6: Final answer
    x = 249,835.31

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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.