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Finding the Fourth Proportional to 79,788.60, 119,705.04 and 34,813.89

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Solution

The fourth proportional to 79,788.60, 119,705.04 and 34,813.89 is: 52,230.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.60 : 119,705.04 = 34,813.89 : x
  2. Step 2: Convert to fraction form
    79,788.60/119,705.04 = 34,813.89/x
  3. Step 3: Cross multiply
    79,788.60x = 119,705.04 × 34,813.89
  4. Step 4: Simplify right side
    79,788.60x = 4,167,398,095.01
  5. Step 5: Solve for x
    x = 4,167,398,095.01/79,788.60
  6. Step 6: Final answer
    x = 52,230.50

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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.