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Finding the Fourth Proportional to 331,428.88, 457,373.16 and 180,524.56

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Solution

The fourth proportional to 331,428.88, 457,373.16 and 180,524.56 is: 249,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,428.88 : 457,373.16 = 180,524.56 : x
  2. Step 2: Convert to fraction form
    331,428.88/457,373.16 = 180,524.56/x
  3. Step 3: Cross multiply
    331,428.88x = 457,373.16 × 180,524.56
  4. Step 4: Simplify right side
    331,428.88x = 82,567,088,464.81
  5. Step 5: Solve for x
    x = 82,567,088,464.81/331,428.88
  6. Step 6: Final answer
    x = 249,124.60

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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.