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Finding the Fourth Proportional to 303,594.39, 455,398.89 and 103,913.46

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Solution

The fourth proportional to 303,594.39, 455,398.89 and 103,913.46 is: 155,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,594.39 : 455,398.89 = 103,913.46 : x
  2. Step 2: Convert to fraction form
    303,594.39/455,398.89 = 103,913.46/x
  3. Step 3: Cross multiply
    303,594.39x = 455,398.89 × 103,913.46
  4. Step 4: Simplify right side
    303,594.39x = 47,322,074,340.06
  5. Step 5: Solve for x
    x = 47,322,074,340.06/303,594.39
  6. Step 6: Final answer
    x = 155,872.69

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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.