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Finding the Fourth Proportional to 185,853.76, 256,483.20 and 100,976.56

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Solution

The fourth proportional to 185,853.76, 256,483.20 and 100,976.56 is: 139,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,853.76 : 256,483.20 = 100,976.56 : x
  2. Step 2: Convert to fraction form
    185,853.76/256,483.20 = 100,976.56/x
  3. Step 3: Cross multiply
    185,853.76x = 256,483.20 × 100,976.56
  4. Step 4: Simplify right side
    185,853.76x = 25,898,791,233.79
  5. Step 5: Solve for x
    x = 25,898,791,233.79/185,853.76
  6. Step 6: Final answer
    x = 139,350.38

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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.