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Finding the Fourth Proportional to 185,677.50, 256,235.40 and 100,794.54

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Solution

The fourth proportional to 185,677.50, 256,235.40 and 100,794.54 is: 139,096.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,677.50 : 256,235.40 = 100,794.54 : x
  2. Step 2: Convert to fraction form
    185,677.50/256,235.40 = 100,794.54/x
  3. Step 3: Cross multiply
    185,677.50x = 256,235.40 × 100,794.54
  4. Step 4: Simplify right side
    185,677.50x = 25,827,129,274.72
  5. Step 5: Solve for x
    x = 25,827,129,274.72/185,677.50
  6. Step 6: Final answer
    x = 139,096.71

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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.