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Finding the Fourth Proportional to 106,992.60, 160,351.52 and 40,353.35

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Solution

The fourth proportional to 106,992.60, 160,351.52 and 40,353.35 is: 60,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,992.60 : 160,351.52 = 40,353.35 : x
  2. Step 2: Convert to fraction form
    106,992.60/160,351.52 = 40,353.35/x
  3. Step 3: Cross multiply
    106,992.60x = 160,351.52 × 40,353.35
  4. Step 4: Simplify right side
    106,992.60x = 6,470,720,006.07
  5. Step 5: Solve for x
    x = 6,470,720,006.07/106,992.60
  6. Step 6: Final answer
    x = 60,478.20

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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.