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Finding the Fourth Proportional to 101,481.51, 140,113.40 and 63,256.35

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Solution

The fourth proportional to 101,481.51, 140,113.40 and 63,256.35 is: 87,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,481.51 : 140,113.40 = 63,256.35 : x
  2. Step 2: Convert to fraction form
    101,481.51/140,113.40 = 63,256.35/x
  3. Step 3: Cross multiply
    101,481.51x = 140,113.40 × 63,256.35
  4. Step 4: Simplify right side
    101,481.51x = 8,863,061,953.81
  5. Step 5: Solve for x
    x = 8,863,061,953.81/101,481.51
  6. Step 6: Final answer
    x = 87,336.72

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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.