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Finding the Fourth Proportional to 160,911.80, 241,367.70 and 67,407.80

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Solution

The fourth proportional to 160,911.80, 241,367.70 and 67,407.80 is: 101,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,911.80 : 241,367.70 = 67,407.80 : x
  2. Step 2: Convert to fraction form
    160,911.80/241,367.70 = 67,407.80/x
  3. Step 3: Cross multiply
    160,911.80x = 241,367.70 × 67,407.80
  4. Step 4: Simplify right side
    160,911.80x = 16,270,065,648.06
  5. Step 5: Solve for x
    x = 16,270,065,648.06/160,911.80
  6. Step 6: Final answer
    x = 101,111.70

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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.