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Finding the Fourth Proportional to 303,483.10, 455,181.45 and 103,812.70

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Solution

The fourth proportional to 303,483.10, 455,181.45 and 103,812.70 is: 155,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,483.10 : 455,181.45 = 103,812.70 : x
  2. Step 2: Convert to fraction form
    303,483.10/455,181.45 = 103,812.70/x
  3. Step 3: Cross multiply
    303,483.10x = 455,181.45 × 103,812.70
  4. Step 4: Simplify right side
    303,483.10x = 47,253,615,314.42
  5. Step 5: Solve for x
    x = 47,253,615,314.42/303,483.10
  6. Step 6: Final answer
    x = 155,704.27

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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.