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Finding the Fourth Proportional to 405,267.98, 607,573.88 and 168,787.67

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Solution

The fourth proportional to 405,267.98, 607,573.88 and 168,787.67 is: 253,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,267.98 : 607,573.88 = 168,787.67 : x
  2. Step 2: Convert to fraction form
    405,267.98/607,573.88 = 168,787.67/x
  3. Step 3: Cross multiply
    405,267.98x = 607,573.88 × 168,787.67
  4. Step 4: Simplify right side
    405,267.98x = 102,550,978,714.12
  5. Step 5: Solve for x
    x = 102,550,978,714.12/405,267.98
  6. Step 6: Final answer
    x = 253,044.86

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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.