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Finding the Fourth Proportional to 103,808.20, 155,654.70 and 44,633.80

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Solution

The fourth proportional to 103,808.20, 155,654.70 and 44,633.80 is: 66,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,808.20 : 155,654.70 = 44,633.80 : x
  2. Step 2: Convert to fraction form
    103,808.20/155,654.70 = 44,633.80/x
  3. Step 3: Cross multiply
    103,808.20x = 155,654.70 × 44,633.80
  4. Step 4: Simplify right side
    103,808.20x = 6,947,460,748.86
  5. Step 5: Solve for x
    x = 6,947,460,748.86/103,808.20
  6. Step 6: Final answer
    x = 66,925.93

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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.