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Finding the Fourth Proportional to 97,788.80, 146,815.20 and 62,796.80

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Solution

The fourth proportional to 97,788.80, 146,815.20 and 62,796.80 is: 94,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,788.80 : 146,815.20 = 62,796.80 : x
  2. Step 2: Convert to fraction form
    97,788.80/146,815.20 = 62,796.80/x
  3. Step 3: Cross multiply
    97,788.80x = 146,815.20 × 62,796.80
  4. Step 4: Simplify right side
    97,788.80x = 9,219,524,751.36
  5. Step 5: Solve for x
    x = 9,219,524,751.36/97,788.80
  6. Step 6: Final answer
    x = 94,279.97

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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.