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Finding the Fourth Proportional to 169,703.20, 254,579.10 and 57,388.60

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Solution

The fourth proportional to 169,703.20, 254,579.10 and 57,388.60 is: 86,091.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,703.20 : 254,579.10 = 57,388.60 : x
  2. Step 2: Convert to fraction form
    169,703.20/254,579.10 = 57,388.60/x
  3. Step 3: Cross multiply
    169,703.20x = 254,579.10 × 57,388.60
  4. Step 4: Simplify right side
    169,703.20x = 14,609,938,138.26
  5. Step 5: Solve for x
    x = 14,609,938,138.26/169,703.20
  6. Step 6: Final answer
    x = 86,091.12

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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.