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Finding the Fourth Proportional to 118,957.15, 164,074.80 and 101,023.75

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Solution

The fourth proportional to 118,957.15, 164,074.80 and 101,023.75 is: 139,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,957.15 : 164,074.80 = 101,023.75 : x
  2. Step 2: Convert to fraction form
    118,957.15/164,074.80 = 101,023.75/x
  3. Step 3: Cross multiply
    118,957.15x = 164,074.80 × 101,023.75
  4. Step 4: Simplify right side
    118,957.15x = 16,575,451,576.50
  5. Step 5: Solve for x
    x = 16,575,451,576.50/118,957.15
  6. Step 6: Final answer
    x = 139,339.68

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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.