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Finding the Fourth Proportional to 119,112.99, 177,812.69 and 102,062.39

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Solution

The fourth proportional to 119,112.99, 177,812.69 and 102,062.39 is: 152,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,112.99 : 177,812.69 = 102,062.39 : x
  2. Step 2: Convert to fraction form
    119,112.99/177,812.69 = 102,062.39/x
  3. Step 3: Cross multiply
    119,112.99x = 177,812.69 × 102,062.39
  4. Step 4: Simplify right side
    119,112.99x = 18,147,988,113.73
  5. Step 5: Solve for x
    x = 18,147,988,113.73/119,112.99
  6. Step 6: Final answer
    x = 152,359.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.