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Finding the Fourth Proportional to 119,896.86, 179,806.35 and 39,913.34

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Solution

The fourth proportional to 119,896.86, 179,806.35 and 39,913.34 is: 59,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,896.86 : 179,806.35 = 39,913.34 : x
  2. Step 2: Convert to fraction form
    119,896.86/179,806.35 = 39,913.34/x
  3. Step 3: Cross multiply
    119,896.86x = 179,806.35 × 39,913.34
  4. Step 4: Simplify right side
    119,896.86x = 7,176,671,782.14
  5. Step 5: Solve for x
    x = 7,176,671,782.14/119,896.86
  6. Step 6: Final answer
    x = 59,857.05

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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.