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Finding the Fourth Proportional to 262,081.15, 393,303.48 and 119,943.79

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Solution

The fourth proportional to 262,081.15, 393,303.48 and 119,943.79 is: 179,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,081.15 : 393,303.48 = 119,943.79 : x
  2. Step 2: Convert to fraction form
    262,081.15/393,303.48 = 119,943.79/x
  3. Step 3: Cross multiply
    262,081.15x = 393,303.48 × 119,943.79
  4. Step 4: Simplify right side
    262,081.15x = 47,174,307,445.15
  5. Step 5: Solve for x
    x = 47,174,307,445.15/262,081.15
  6. Step 6: Final answer
    x = 179,998.86

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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.