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Finding the Fourth Proportional to 118,645.91, 177,955.70 and 29,899.40

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Solution

The fourth proportional to 118,645.91, 177,955.70 and 29,899.40 is: 44,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,645.91 : 177,955.70 = 29,899.40 : x
  2. Step 2: Convert to fraction form
    118,645.91/177,955.70 = 29,899.40/x
  3. Step 3: Cross multiply
    118,645.91x = 177,955.70 × 29,899.40
  4. Step 4: Simplify right side
    118,645.91x = 5,320,768,951.97
  5. Step 5: Solve for x
    x = 5,320,768,951.97/118,645.91
  6. Step 6: Final answer
    x = 44,845.79

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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.