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Finding the Fourth Proportional to 116,604.38, 160,913.30 and 66,303.38

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Solution

The fourth proportional to 116,604.38, 160,913.30 and 66,303.38 is: 91,498.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,604.38 : 160,913.30 = 66,303.38 : x
  2. Step 2: Convert to fraction form
    116,604.38/160,913.30 = 66,303.38/x
  3. Step 3: Cross multiply
    116,604.38x = 160,913.30 × 66,303.38
  4. Step 4: Simplify right side
    116,604.38x = 10,669,095,676.95
  5. Step 5: Solve for x
    x = 10,669,095,676.95/116,604.38
  6. Step 6: Final answer
    x = 91,498.24

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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.