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Finding the Fourth Proportional to 118,498.80, 177,551.36 and 83,364.64

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Solution

The fourth proportional to 118,498.80, 177,551.36 and 83,364.64 is: 124,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,498.80 : 177,551.36 = 83,364.64 : x
  2. Step 2: Convert to fraction form
    118,498.80/177,551.36 = 83,364.64/x
  3. Step 3: Cross multiply
    118,498.80x = 177,551.36 × 83,364.64
  4. Step 4: Simplify right side
    118,498.80x = 14,801,505,207.91
  5. Step 5: Solve for x
    x = 14,801,505,207.91/118,498.80
  6. Step 6: Final answer
    x = 124,908.48

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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.