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Finding the Fourth Proportional to 185,636.81, 256,179.05 and 100,753.87

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Solution

The fourth proportional to 185,636.81, 256,179.05 and 100,753.87 is: 139,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,636.81 : 256,179.05 = 100,753.87 : x
  2. Step 2: Convert to fraction form
    185,636.81/256,179.05 = 100,753.87/x
  3. Step 3: Cross multiply
    185,636.81x = 256,179.05 × 100,753.87
  4. Step 4: Simplify right side
    185,636.81x = 25,811,030,700.42
  5. Step 5: Solve for x
    x = 25,811,030,700.42/185,636.81
  6. Step 6: Final answer
    x = 139,040.48

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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.