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Finding the Fourth Proportional to 112,480.70, 168,637.03 and 68,096.78

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Solution

The fourth proportional to 112,480.70, 168,637.03 and 68,096.78 is: 102,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,480.70 : 168,637.03 = 68,096.78 : x
  2. Step 2: Convert to fraction form
    112,480.70/168,637.03 = 68,096.78/x
  3. Step 3: Cross multiply
    112,480.70x = 168,637.03 × 68,096.78
  4. Step 4: Simplify right side
    112,480.70x = 11,483,638,731.76
  5. Step 5: Solve for x
    x = 11,483,638,731.76/112,480.70
  6. Step 6: Final answer
    x = 102,094.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.