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Finding the Fourth Proportional to 122,059.66, 168,329.95 and 83,751.62

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Solution

The fourth proportional to 122,059.66, 168,329.95 and 83,751.62 is: 115,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,059.66 : 168,329.95 = 83,751.62 : x
  2. Step 2: Convert to fraction form
    122,059.66/168,329.95 = 83,751.62/x
  3. Step 3: Cross multiply
    122,059.66x = 168,329.95 × 83,751.62
  4. Step 4: Simplify right side
    122,059.66x = 14,097,905,902.85
  5. Step 5: Solve for x
    x = 14,097,905,902.85/122,059.66
  6. Step 6: Final answer
    x = 115,500.12

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1.5x scale

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.