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Finding the Fourth Proportional to 303,161.48, 454,788.93 and 103,435.31

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Solution

The fourth proportional to 303,161.48, 454,788.93 and 103,435.31 is: 155,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,161.48 : 454,788.93 = 103,435.31 : x
  2. Step 2: Convert to fraction form
    303,161.48/454,788.93 = 103,435.31/x
  3. Step 3: Cross multiply
    303,161.48x = 454,788.93 × 103,435.31
  4. Step 4: Simplify right side
    303,161.48x = 47,041,233,959.12
  5. Step 5: Solve for x
    x = 47,041,233,959.12/303,161.48
  6. Step 6: Final answer
    x = 155,168.90

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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.