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Finding the Fourth Proportional to 107,203.20, 160,977.60 and 80,937.60

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Solution

The fourth proportional to 107,203.20, 160,977.60 and 80,937.60 is: 121,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,203.20 : 160,977.60 = 80,937.60 : x
  2. Step 2: Convert to fraction form
    107,203.20/160,977.60 = 80,937.60/x
  3. Step 3: Cross multiply
    107,203.20x = 160,977.60 × 80,937.60
  4. Step 4: Simplify right side
    107,203.20x = 13,029,140,597.76
  5. Step 5: Solve for x
    x = 13,029,140,597.76/107,203.20
  6. Step 6: Final answer
    x = 121,536.86

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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.