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Finding the Fourth Proportional to 355,992.51, 533,920.71 and 106,674.51

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Solution

The fourth proportional to 355,992.51, 533,920.71 and 106,674.51 is: 159,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,992.51 : 533,920.71 = 106,674.51 : x
  2. Step 2: Convert to fraction form
    355,992.51/533,920.71 = 106,674.51/x
  3. Step 3: Cross multiply
    355,992.51x = 533,920.71 × 106,674.51
  4. Step 4: Simplify right side
    355,992.51x = 56,955,730,118.10
  5. Step 5: Solve for x
    x = 56,955,730,118.10/355,992.51
  6. Step 6: Final answer
    x = 159,991.37

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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.