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Finding the Fourth Proportional to 355,046.80, 532,872.60 and 144,835.60

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Solution

The fourth proportional to 355,046.80, 532,872.60 and 144,835.60 is: 217,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,046.80 : 532,872.60 = 144,835.60 : x
  2. Step 2: Convert to fraction form
    355,046.80/532,872.60 = 144,835.60/x
  3. Step 3: Cross multiply
    355,046.80x = 532,872.60 × 144,835.60
  4. Step 4: Simplify right side
    355,046.80x = 77,178,922,744.56
  5. Step 5: Solve for x
    x = 77,178,922,744.56/355,046.80
  6. Step 6: Final answer
    x = 217,376.76

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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.