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Finding the Fourth Proportional to 103,483.56, 155,158.57 and 49,418.98

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Solution

The fourth proportional to 103,483.56, 155,158.57 and 49,418.98 is: 74,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,483.56 : 155,158.57 = 49,418.98 : x
  2. Step 2: Convert to fraction form
    103,483.56/155,158.57 = 49,418.98/x
  3. Step 3: Cross multiply
    103,483.56x = 155,158.57 × 49,418.98
  4. Step 4: Simplify right side
    103,483.56x = 7,667,778,267.66
  5. Step 5: Solve for x
    x = 7,667,778,267.66/103,483.56
  6. Step 6: Final answer
    x = 74,096.58

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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.