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Finding the Fourth Proportional to 331,604.88, 497,303.64 and 144,427.92

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Solution

The fourth proportional to 331,604.88, 497,303.64 and 144,427.92 is: 216,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,604.88 : 497,303.64 = 144,427.92 : x
  2. Step 2: Convert to fraction form
    331,604.88/497,303.64 = 144,427.92/x
  3. Step 3: Cross multiply
    331,604.88x = 497,303.64 × 144,427.92
  4. Step 4: Simplify right side
    331,604.88x = 71,824,530,333.63
  5. Step 5: Solve for x
    x = 71,824,530,333.63/331,604.88
  6. Step 6: Final answer
    x = 216,596.72

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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.