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Finding the Fourth Proportional to 103,816.44, 155,707.02 and 28,944.05

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Solution

The fourth proportional to 103,816.44, 155,707.02 and 28,944.05 is: 43,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,816.44 : 155,707.02 = 28,944.05 : x
  2. Step 2: Convert to fraction form
    103,816.44/155,707.02 = 28,944.05/x
  3. Step 3: Cross multiply
    103,816.44x = 155,707.02 × 28,944.05
  4. Step 4: Simplify right side
    103,816.44x = 4,506,790,993.70
  5. Step 5: Solve for x
    x = 4,506,790,993.70/103,816.44
  6. Step 6: Final answer
    x = 43,411.15

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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.