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Finding the Fourth Proportional to 103,473.64, 155,245.02 and 41,127.40

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Solution

The fourth proportional to 103,473.64, 155,245.02 and 41,127.40 is: 61,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,473.64 : 155,245.02 = 41,127.40 : x
  2. Step 2: Convert to fraction form
    103,473.64/155,245.02 = 41,127.40/x
  3. Step 3: Cross multiply
    103,473.64x = 155,245.02 × 41,127.40
  4. Step 4: Simplify right side
    103,473.64x = 6,384,824,035.55
  5. Step 5: Solve for x
    x = 6,384,824,035.55/103,473.64
  6. Step 6: Final answer
    x = 61,704.84

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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.