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Finding the Fourth Proportional to 185,548.87, 256,056.37 and 100,664.11

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Solution

The fourth proportional to 185,548.87, 256,056.37 and 100,664.11 is: 138,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,548.87 : 256,056.37 = 100,664.11 : x
  2. Step 2: Convert to fraction form
    185,548.87/256,056.37 = 100,664.11/x
  3. Step 3: Cross multiply
    185,548.87x = 256,056.37 × 100,664.11
  4. Step 4: Simplify right side
    185,548.87x = 25,775,687,230.53
  5. Step 5: Solve for x
    x = 25,775,687,230.53/185,548.87
  6. Step 6: Final answer
    x = 138,915.89

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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.