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Finding the Fourth Proportional to 481,030.56, 721,342.84 and 144,119.11

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Solution

The fourth proportional to 481,030.56, 721,342.84 and 144,119.11 is: 216,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,030.56 : 721,342.84 = 144,119.11 : x
  2. Step 2: Convert to fraction form
    481,030.56/721,342.84 = 144,119.11/x
  3. Step 3: Cross multiply
    481,030.56x = 721,342.84 × 144,119.11
  4. Step 4: Simplify right side
    481,030.56x = 103,959,288,105.67
  5. Step 5: Solve for x
    x = 103,959,288,105.67/481,030.56
  6. Step 6: Final answer
    x = 216,117.85

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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.