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Finding the Fourth Proportional to 103,645.60, 155,506.80 and 41,360.80

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Solution

The fourth proportional to 103,645.60, 155,506.80 and 41,360.80 is: 62,056.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.60 : 155,506.80 = 41,360.80 : x
  2. Step 2: Convert to fraction form
    103,645.60/155,506.80 = 41,360.80/x
  3. Step 3: Cross multiply
    103,645.60x = 155,506.80 × 41,360.80
  4. Step 4: Simplify right side
    103,645.60x = 6,431,885,653.44
  5. Step 5: Solve for x
    x = 6,431,885,653.44/103,645.60
  6. Step 6: Final answer
    x = 62,056.52

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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.