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Finding the Fourth Proportional to 103,321.96, 155,051.10 and 37,657.96

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Solution

The fourth proportional to 103,321.96, 155,051.10 and 37,657.96 is: 56,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,321.96 : 155,051.10 = 37,657.96 : x
  2. Step 2: Convert to fraction form
    103,321.96/155,051.10 = 37,657.96/x
  3. Step 3: Cross multiply
    103,321.96x = 155,051.10 × 37,657.96
  4. Step 4: Simplify right side
    103,321.96x = 5,838,908,121.76
  5. Step 5: Solve for x
    x = 5,838,908,121.76/103,321.96
  6. Step 6: Final answer
    x = 56,511.78

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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.