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Finding the Fourth Proportional to 118,186.76, 177,282.57 and 65,928.80

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Solution

The fourth proportional to 118,186.76, 177,282.57 and 65,928.80 is: 98,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,186.76 : 177,282.57 = 65,928.80 : x
  2. Step 2: Convert to fraction form
    118,186.76/177,282.57 = 65,928.80/x
  3. Step 3: Cross multiply
    118,186.76x = 177,282.57 × 65,928.80
  4. Step 4: Simplify right side
    118,186.76x = 11,688,026,214.60
  5. Step 5: Solve for x
    x = 11,688,026,214.60/118,186.76
  6. Step 6: Final answer
    x = 98,894.55

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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.