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Finding the Fourth Proportional to 118,758.50, 163,880.48 and 65,042.36

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Solution

The fourth proportional to 118,758.50, 163,880.48 and 65,042.36 is: 89,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.50 : 163,880.48 = 65,042.36 : x
  2. Step 2: Convert to fraction form
    118,758.50/163,880.48 = 65,042.36/x
  3. Step 3: Cross multiply
    118,758.50x = 163,880.48 × 65,042.36
  4. Step 4: Simplify right side
    118,758.50x = 10,659,173,177.13
  5. Step 5: Solve for x
    x = 10,659,173,177.13/118,758.50
  6. Step 6: Final answer
    x = 89,755.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.