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Finding the Fourth Proportional to 185,684.28, 256,242.90 and 100,799.64

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Solution

The fourth proportional to 185,684.28, 256,242.90 and 100,799.64 is: 139,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,684.28 : 256,242.90 = 100,799.64 : x
  2. Step 2: Convert to fraction form
    185,684.28/256,242.90 = 100,799.64/x
  3. Step 3: Cross multiply
    185,684.28x = 256,242.90 × 100,799.64
  4. Step 4: Simplify right side
    185,684.28x = 25,829,192,072.56
  5. Step 5: Solve for x
    x = 25,829,192,072.56/185,684.28
  6. Step 6: Final answer
    x = 139,102.74

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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.