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Finding the Fourth Proportional to 175,503.20, 262,486.80 and 156,917.60

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Solution

The fourth proportional to 175,503.20, 262,486.80 and 156,917.60 is: 234,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,503.20 : 262,486.80 = 156,917.60 : x
  2. Step 2: Convert to fraction form
    175,503.20/262,486.80 = 156,917.60/x
  3. Step 3: Cross multiply
    175,503.20x = 262,486.80 × 156,917.60
  4. Step 4: Simplify right side
    175,503.20x = 41,188,798,687.68
  5. Step 5: Solve for x
    x = 41,188,798,687.68/175,503.20
  6. Step 6: Final answer
    x = 234,689.73

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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.