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Finding the Fourth Proportional to 185,651.52, 256,192.25 and 100,766.76

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Solution

The fourth proportional to 185,651.52, 256,192.25 and 100,766.76 is: 139,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,651.52 : 256,192.25 = 100,766.76 : x
  2. Step 2: Convert to fraction form
    185,651.52/256,192.25 = 100,766.76/x
  3. Step 3: Cross multiply
    185,651.52x = 256,192.25 × 100,766.76
  4. Step 4: Simplify right side
    185,651.52x = 25,815,662,969.61
  5. Step 5: Solve for x
    x = 25,815,662,969.61/185,651.52
  6. Step 6: Final answer
    x = 139,054.41

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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.