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Finding the Fourth Proportional to 118,764.16, 163,894.60 and 65,052.59

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Solution

The fourth proportional to 118,764.16, 163,894.60 and 65,052.59 is: 89,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,764.16 : 163,894.60 = 65,052.59 : x
  2. Step 2: Convert to fraction form
    118,764.16/163,894.60 = 65,052.59/x
  3. Step 3: Cross multiply
    118,764.16x = 163,894.60 × 65,052.59
  4. Step 4: Simplify right side
    118,764.16x = 10,661,768,217.01
  5. Step 5: Solve for x
    x = 10,661,768,217.01/118,764.16
  6. Step 6: Final answer
    x = 89,772.61

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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.