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Finding the Fourth Proportional to 118,073.75, 162,849.60 and 75,636.23

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Solution

The fourth proportional to 118,073.75, 162,849.60 and 75,636.23 is: 104,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,073.75 : 162,849.60 = 75,636.23 : x
  2. Step 2: Convert to fraction form
    118,073.75/162,849.60 = 75,636.23/x
  3. Step 3: Cross multiply
    118,073.75x = 162,849.60 × 75,636.23
  4. Step 4: Simplify right side
    118,073.75x = 12,317,328,986.76
  5. Step 5: Solve for x
    x = 12,317,328,986.76/118,073.75
  6. Step 6: Final answer
    x = 104,318.95

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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.