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Finding the Fourth Proportional to 185,687.75, 256,252.20 and 100,804.81

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Solution

The fourth proportional to 185,687.75, 256,252.20 and 100,804.81 is: 139,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,687.75 : 256,252.20 = 100,804.81 : x
  2. Step 2: Convert to fraction form
    185,687.75/256,252.20 = 100,804.81/x
  3. Step 3: Cross multiply
    185,687.75x = 256,252.20 × 100,804.81
  4. Step 4: Simplify right side
    185,687.75x = 25,831,454,333.08
  5. Step 5: Solve for x
    x = 25,831,454,333.08/185,687.75
  6. Step 6: Final answer
    x = 139,112.32

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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.