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Finding the Fourth Proportional to 185,687.39, 256,248.86 and 100,804.46

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Solution

The fourth proportional to 185,687.39, 256,248.86 and 100,804.46 is: 139,110.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,687.39 : 256,248.86 = 100,804.46 : x
  2. Step 2: Convert to fraction form
    185,687.39/256,248.86 = 100,804.46/x
  3. Step 3: Cross multiply
    185,687.39x = 256,248.86 × 100,804.46
  4. Step 4: Simplify right side
    185,687.39x = 25,831,026,172.65
  5. Step 5: Solve for x
    x = 25,831,026,172.65/185,687.39
  6. Step 6: Final answer
    x = 139,110.29

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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.