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Finding the Fourth Proportional to 169,720.48, 254,581.32 and 57,401.60

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Solution

The fourth proportional to 169,720.48, 254,581.32 and 57,401.60 is: 86,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,720.48 : 254,581.32 = 57,401.60 : x
  2. Step 2: Convert to fraction form
    169,720.48/254,581.32 = 57,401.60/x
  3. Step 3: Cross multiply
    169,720.48x = 254,581.32 × 57,401.60
  4. Step 4: Simplify right side
    169,720.48x = 14,613,375,098.11
  5. Step 5: Solve for x
    x = 14,613,375,098.11/169,720.48
  6. Step 6: Final answer
    x = 86,102.60

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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.