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Finding the Fourth Proportional to 185,961, 256,626.48 and 101,077.86

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Solution

The fourth proportional to 185,961, 256,626.48 and 101,077.86 is: 139,487.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,961 : 256,626.48 = 101,077.86 : x
  2. Step 2: Convert to fraction form
    185,961/256,626.48 = 101,077.86/x
  3. Step 3: Cross multiply
    185,961x = 256,626.48 × 101,077.86
  4. Step 4: Simplify right side
    185,961x = 25,939,255,417.73
  5. Step 5: Solve for x
    x = 25,939,255,417.73/185,961
  6. Step 6: Final answer
    x = 139,487.61

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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.