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Finding the Fourth Proportional to 118,226.70, 177,340.05 and 39,348.90

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Solution

The fourth proportional to 118,226.70, 177,340.05 and 39,348.90 is: 59,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,226.70 : 177,340.05 = 39,348.90 : x
  2. Step 2: Convert to fraction form
    118,226.70/177,340.05 = 39,348.90/x
  3. Step 3: Cross multiply
    118,226.70x = 177,340.05 × 39,348.90
  4. Step 4: Simplify right side
    118,226.70x = 6,978,135,893.45
  5. Step 5: Solve for x
    x = 6,978,135,893.45/118,226.70
  6. Step 6: Final answer
    x = 59,023.35

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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.