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Finding the Fourth Proportional to 275,659.20, 413,488.80 and 117,903.60

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Solution

The fourth proportional to 275,659.20, 413,488.80 and 117,903.60 is: 176,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,659.20 : 413,488.80 = 117,903.60 : x
  2. Step 2: Convert to fraction form
    275,659.20/413,488.80 = 117,903.60/x
  3. Step 3: Cross multiply
    275,659.20x = 413,488.80 × 117,903.60
  4. Step 4: Simplify right side
    275,659.20x = 48,751,818,079.68
  5. Step 5: Solve for x
    x = 48,751,818,079.68/275,659.20
  6. Step 6: Final answer
    x = 176,855.40

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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.