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Finding the Fourth Proportional to 236,334.60, 354,501.90 and 78,542.55

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Solution

The fourth proportional to 236,334.60, 354,501.90 and 78,542.55 is: 117,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,334.60 : 354,501.90 = 78,542.55 : x
  2. Step 2: Convert to fraction form
    236,334.60/354,501.90 = 78,542.55/x
  3. Step 3: Cross multiply
    236,334.60x = 354,501.90 × 78,542.55
  4. Step 4: Simplify right side
    236,334.60x = 27,843,483,205.85
  5. Step 5: Solve for x
    x = 27,843,483,205.85/236,334.60
  6. Step 6: Final answer
    x = 117,813.83

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1.5x scale

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.