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Finding the Fourth Proportional to 339,970.70, 509,264.85 and 173,852.30

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Solution

The fourth proportional to 339,970.70, 509,264.85 and 173,852.30 is: 260,424.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,970.70 : 509,264.85 = 173,852.30 : x
  2. Step 2: Convert to fraction form
    339,970.70/509,264.85 = 173,852.30/x
  3. Step 3: Cross multiply
    339,970.70x = 509,264.85 × 173,852.30
  4. Step 4: Simplify right side
    339,970.70x = 88,536,865,481.66
  5. Step 5: Solve for x
    x = 88,536,865,481.66/339,970.70
  6. Step 6: Final answer
    x = 260,424.99

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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.