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Finding the Fourth Proportional to 536,717.94, 805,107.07 and 172,011.29

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Solution

The fourth proportional to 536,717.94, 805,107.07 and 172,011.29 is: 258,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,717.94 : 805,107.07 = 172,011.29 : x
  2. Step 2: Convert to fraction form
    536,717.94/805,107.07 = 172,011.29/x
  3. Step 3: Cross multiply
    536,717.94x = 805,107.07 × 172,011.29
  4. Step 4: Simplify right side
    536,717.94x = 138,487,504,907.45
  5. Step 5: Solve for x
    x = 138,487,504,907.45/536,717.94
  6. Step 6: Final answer
    x = 258,026.60

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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.