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Finding the Fourth Proportional to 118,239.51, 177,042.15 and 73,777.80

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Solution

The fourth proportional to 118,239.51, 177,042.15 and 73,777.80 is: 110,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.51 : 177,042.15 = 73,777.80 : x
  2. Step 2: Convert to fraction form
    118,239.51/177,042.15 = 73,777.80/x
  3. Step 3: Cross multiply
    118,239.51x = 177,042.15 × 73,777.80
  4. Step 4: Simplify right side
    118,239.51x = 13,061,780,334.27
  5. Step 5: Solve for x
    x = 13,061,780,334.27/118,239.51
  6. Step 6: Final answer
    x = 110,468.83

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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.