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Finding the Fourth Proportional to 103,294.10, 154,904.70 and 36,736.40

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Solution

The fourth proportional to 103,294.10, 154,904.70 and 36,736.40 is: 55,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,294.10 : 154,904.70 = 36,736.40 : x
  2. Step 2: Convert to fraction form
    103,294.10/154,904.70 = 36,736.40/x
  3. Step 3: Cross multiply
    103,294.10x = 154,904.70 × 36,736.40
  4. Step 4: Simplify right side
    103,294.10x = 5,690,641,021.08
  5. Step 5: Solve for x
    x = 5,690,641,021.08/103,294.10
  6. Step 6: Final answer
    x = 55,091.64

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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.