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Finding the Fourth Proportional to 103,606.62, 155,410.02 and 44,403.90

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Solution

The fourth proportional to 103,606.62, 155,410.02 and 44,403.90 is: 66,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,606.62 : 155,410.02 = 44,403.90 : x
  2. Step 2: Convert to fraction form
    103,606.62/155,410.02 = 44,403.90/x
  3. Step 3: Cross multiply
    103,606.62x = 155,410.02 × 44,403.90
  4. Step 4: Simplify right side
    103,606.62x = 6,900,810,987.08
  5. Step 5: Solve for x
    x = 6,900,810,987.08/103,606.62
  6. Step 6: Final answer
    x = 66,605.89

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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.