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Finding the Fourth Proportional to 103,473.96, 155,210.56 and 28,593.97

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Solution

The fourth proportional to 103,473.96, 155,210.56 and 28,593.97 is: 42,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,473.96 : 155,210.56 = 28,593.97 : x
  2. Step 2: Convert to fraction form
    103,473.96/155,210.56 = 28,593.97/x
  3. Step 3: Cross multiply
    103,473.96x = 155,210.56 × 28,593.97
  4. Step 4: Simplify right side
    103,473.96x = 4,438,085,744.04
  5. Step 5: Solve for x
    x = 4,438,085,744.04/103,473.96
  6. Step 6: Final answer
    x = 42,890.85

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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.