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Finding the Fourth Proportional to 156,708.80, 235,103.73 and 67,941.80

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Solution

The fourth proportional to 156,708.80, 235,103.73 and 67,941.80 is: 101,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,708.80 : 235,103.73 = 67,941.80 : x
  2. Step 2: Convert to fraction form
    156,708.80/235,103.73 = 67,941.80/x
  3. Step 3: Cross multiply
    156,708.80x = 235,103.73 × 67,941.80
  4. Step 4: Simplify right side
    156,708.80x = 15,973,370,602.91
  5. Step 5: Solve for x
    x = 15,973,370,602.91/156,708.80
  6. Step 6: Final answer
    x = 101,930.27

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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.