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Finding the Fourth Proportional to 118,397.57, 177,615.97 and 39,535.97

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Solution

The fourth proportional to 118,397.57, 177,615.97 and 39,535.97 is: 59,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,397.57 : 177,615.97 = 39,535.97 : x
  2. Step 2: Convert to fraction form
    118,397.57/177,615.97 = 39,535.97/x
  3. Step 3: Cross multiply
    118,397.57x = 177,615.97 × 39,535.97
  4. Step 4: Simplify right side
    118,397.57x = 7,022,218,674.52
  5. Step 5: Solve for x
    x = 7,022,218,674.52/118,397.57
  6. Step 6: Final answer
    x = 59,310.50

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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.