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Finding the Fourth Proportional to 103,450.55, 155,194.05 and 36,929.30

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Solution

The fourth proportional to 103,450.55, 155,194.05 and 36,929.30 is: 55,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,450.55 : 155,194.05 = 36,929.30 : x
  2. Step 2: Convert to fraction form
    103,450.55/155,194.05 = 36,929.30/x
  3. Step 3: Cross multiply
    103,450.55x = 155,194.05 × 36,929.30
  4. Step 4: Simplify right side
    103,450.55x = 5,731,207,630.67
  5. Step 5: Solve for x
    x = 5,731,207,630.67/103,450.55
  6. Step 6: Final answer
    x = 55,400.46

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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.