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Finding the Fourth Proportional to 118,366.78, 177,550.84 and 39,480.79

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Solution

The fourth proportional to 118,366.78, 177,550.84 and 39,480.79 is: 59,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,366.78 : 177,550.84 = 39,480.79 : x
  2. Step 2: Convert to fraction form
    118,366.78/177,550.84 = 39,480.79/x
  3. Step 3: Cross multiply
    118,366.78x = 177,550.84 × 39,480.79
  4. Step 4: Simplify right side
    118,366.78x = 7,009,847,428.36
  5. Step 5: Solve for x
    x = 7,009,847,428.36/118,366.78
  6. Step 6: Final answer
    x = 59,221.41

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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.