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Finding the Fourth Proportional to 118,449.36, 177,519.80 and 105,896.40

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Solution

The fourth proportional to 118,449.36, 177,519.80 and 105,896.40 is: 158,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,449.36 : 177,519.80 = 105,896.40 : x
  2. Step 2: Convert to fraction form
    118,449.36/177,519.80 = 105,896.40/x
  3. Step 3: Cross multiply
    118,449.36x = 177,519.80 × 105,896.40
  4. Step 4: Simplify right side
    118,449.36x = 18,798,707,748.72
  5. Step 5: Solve for x
    x = 18,798,707,748.72/118,449.36
  6. Step 6: Final answer
    x = 158,706.71

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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.