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Finding the Fourth Proportional to 119,953.45, 179,930.40 and 31,206.81

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Solution

The fourth proportional to 119,953.45, 179,930.40 and 31,206.81 is: 46,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,953.45 : 179,930.40 = 31,206.81 : x
  2. Step 2: Convert to fraction form
    119,953.45/179,930.40 = 31,206.81/x
  3. Step 3: Cross multiply
    119,953.45x = 179,930.40 × 31,206.81
  4. Step 4: Simplify right side
    119,953.45x = 5,615,052,750.34
  5. Step 5: Solve for x
    x = 5,615,052,750.34/119,953.45
  6. Step 6: Final answer
    x = 46,810.27

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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.