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Finding the Fourth Proportional to 109,462.40, 164,193.60 and 62,676.80

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Solution

The fourth proportional to 109,462.40, 164,193.60 and 62,676.80 is: 94,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,462.40 : 164,193.60 = 62,676.80 : x
  2. Step 2: Convert to fraction form
    109,462.40/164,193.60 = 62,676.80/x
  3. Step 3: Cross multiply
    109,462.40x = 164,193.60 × 62,676.80
  4. Step 4: Simplify right side
    109,462.40x = 10,291,129,428.48
  5. Step 5: Solve for x
    x = 10,291,129,428.48/109,462.40
  6. Step 6: Final answer
    x = 94,015.20

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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.