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Finding the Fourth Proportional to 185,879.72, 256,510.32 and 100,997.39

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Solution

The fourth proportional to 185,879.72, 256,510.32 and 100,997.39 is: 139,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,879.72 : 256,510.32 = 100,997.39 : x
  2. Step 2: Convert to fraction form
    185,879.72/256,510.32 = 100,997.39/x
  3. Step 3: Cross multiply
    185,879.72x = 256,510.32 × 100,997.39
  4. Step 4: Simplify right side
    185,879.72x = 25,906,872,828.06
  5. Step 5: Solve for x
    x = 25,906,872,828.06/185,879.72
  6. Step 6: Final answer
    x = 139,374.39

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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.