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Finding the Fourth Proportional to 185,618.90, 256,157.92 and 105,046.41

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Solution

The fourth proportional to 185,618.90, 256,157.92 and 105,046.41 is: 144,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,618.90 : 256,157.92 = 105,046.41 : x
  2. Step 2: Convert to fraction form
    185,618.90/256,157.92 = 105,046.41/x
  3. Step 3: Cross multiply
    185,618.90x = 256,157.92 × 105,046.41
  4. Step 4: Simplify right side
    185,618.90x = 26,908,469,626.45
  5. Step 5: Solve for x
    x = 26,908,469,626.45/185,618.90
  6. Step 6: Final answer
    x = 144,966.21

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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.