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Finding the Fourth Proportional to 192,401.40, 265,342.02 and 120,788.10

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Solution

The fourth proportional to 192,401.40, 265,342.02 and 120,788.10 is: 166,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,401.40 : 265,342.02 = 120,788.10 : x
  2. Step 2: Convert to fraction form
    192,401.40/265,342.02 = 120,788.10/x
  3. Step 3: Cross multiply
    192,401.40x = 265,342.02 × 120,788.10
  4. Step 4: Simplify right side
    192,401.40x = 32,050,158,445.96
  5. Step 5: Solve for x
    x = 32,050,158,445.96/192,401.40
  6. Step 6: Final answer
    x = 166,579.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.