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Finding the Fourth Proportional to 68,555.60, 102,833.40 and 62,853.20

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Solution

The fourth proportional to 68,555.60, 102,833.40 and 62,853.20 is: 94,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,555.60 : 102,833.40 = 62,853.20 : x
  2. Step 2: Convert to fraction form
    68,555.60/102,833.40 = 62,853.20/x
  3. Step 3: Cross multiply
    68,555.60x = 102,833.40 × 62,853.20
  4. Step 4: Simplify right side
    68,555.60x = 6,463,408,256.88
  5. Step 5: Solve for x
    x = 6,463,408,256.88/68,555.60
  6. Step 6: Final answer
    x = 94,279.80

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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.