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Finding the Fourth Proportional to 170,902.63, 256,353.96 and 111,788.02

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Solution

The fourth proportional to 170,902.63, 256,353.96 and 111,788.02 is: 167,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,902.63 : 256,353.96 = 111,788.02 : x
  2. Step 2: Convert to fraction form
    170,902.63/256,353.96 = 111,788.02/x
  3. Step 3: Cross multiply
    170,902.63x = 256,353.96 × 111,788.02
  4. Step 4: Simplify right side
    170,902.63x = 28,657,301,607.56
  5. Step 5: Solve for x
    x = 28,657,301,607.56/170,902.63
  6. Step 6: Final answer
    x = 167,682.04

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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.