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Finding the Fourth Proportional to 185,636.72, 256,178.85 and 100,753.85

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Solution

The fourth proportional to 185,636.72, 256,178.85 and 100,753.85 is: 139,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,636.72 : 256,178.85 = 100,753.85 : x
  2. Step 2: Convert to fraction form
    185,636.72/256,178.85 = 100,753.85/x
  3. Step 3: Cross multiply
    185,636.72x = 256,178.85 × 100,753.85
  4. Step 4: Simplify right side
    185,636.72x = 25,811,005,426.07
  5. Step 5: Solve for x
    x = 25,811,005,426.07/185,636.72
  6. Step 6: Final answer
    x = 139,040.41

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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.