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Finding the Fourth Proportional to 185,557.84, 256,072.79 and 100,674.90

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Solution

The fourth proportional to 185,557.84, 256,072.79 and 100,674.90 is: 138,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,557.84 : 256,072.79 = 100,674.90 : x
  2. Step 2: Convert to fraction form
    185,557.84/256,072.79 = 100,674.90/x
  3. Step 3: Cross multiply
    185,557.84x = 256,072.79 × 100,674.90
  4. Step 4: Simplify right side
    185,557.84x = 25,780,102,777.66
  5. Step 5: Solve for x
    x = 25,780,102,777.66/185,557.84
  6. Step 6: Final answer
    x = 138,932.98

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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.