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Finding the Fourth Proportional to 355,046.60, 532,310.70 and 144,576.20

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Solution

The fourth proportional to 355,046.60, 532,310.70 and 144,576.20 is: 216,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,046.60 : 532,310.70 = 144,576.20 : x
  2. Step 2: Convert to fraction form
    355,046.60/532,310.70 = 144,576.20/x
  3. Step 3: Cross multiply
    355,046.60x = 532,310.70 × 144,576.20
  4. Step 4: Simplify right side
    355,046.60x = 76,959,458,225.34
  5. Step 5: Solve for x
    x = 76,959,458,225.34/355,046.60
  6. Step 6: Final answer
    x = 216,758.75

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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.