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Finding the Fourth Proportional to 118,698.84, 177,990.82 and 43,854.24

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Solution

The fourth proportional to 118,698.84, 177,990.82 and 43,854.24 is: 65,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,698.84 : 177,990.82 = 43,854.24 : x
  2. Step 2: Convert to fraction form
    118,698.84/177,990.82 = 43,854.24/x
  3. Step 3: Cross multiply
    118,698.84x = 177,990.82 × 43,854.24
  4. Step 4: Simplify right side
    118,698.84x = 7,805,652,138.08
  5. Step 5: Solve for x
    x = 7,805,652,138.08/118,698.84
  6. Step 6: Final answer
    x = 65,760.14

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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.