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Finding the Fourth Proportional to 118,517.76, 177,776.64 and 35,411.76

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Solution

The fourth proportional to 118,517.76, 177,776.64 and 35,411.76 is: 53,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,517.76 : 177,776.64 = 35,411.76 : x
  2. Step 2: Convert to fraction form
    118,517.76/177,776.64 = 35,411.76/x
  3. Step 3: Cross multiply
    118,517.76x = 177,776.64 × 35,411.76
  4. Step 4: Simplify right side
    118,517.76x = 6,295,383,709.29
  5. Step 5: Solve for x
    x = 6,295,383,709.29/118,517.76
  6. Step 6: Final answer
    x = 53,117.64

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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.