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Finding the Fourth Proportional to 185,653.67, 256,202.55 and 100,770.74

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Solution

The fourth proportional to 185,653.67, 256,202.55 and 100,770.74 is: 139,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,653.67 : 256,202.55 = 100,770.74 : x
  2. Step 2: Convert to fraction form
    185,653.67/256,202.55 = 100,770.74/x
  3. Step 3: Cross multiply
    185,653.67x = 256,202.55 × 100,770.74
  4. Step 4: Simplify right side
    185,653.67x = 25,817,719,272.37
  5. Step 5: Solve for x
    x = 25,817,719,272.37/185,653.67
  6. Step 6: Final answer
    x = 139,063.88

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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.