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Finding the Fourth Proportional to 303,494.80, 455,424.45 and 125,983.30

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Solution

The fourth proportional to 303,494.80, 455,424.45 and 125,983.30 is: 189,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,494.80 : 455,424.45 = 125,983.30 : x
  2. Step 2: Convert to fraction form
    303,494.80/455,424.45 = 125,983.30/x
  3. Step 3: Cross multiply
    303,494.80x = 455,424.45 × 125,983.30
  4. Step 4: Simplify right side
    303,494.80x = 57,375,875,111.69
  5. Step 5: Solve for x
    x = 57,375,875,111.69/303,494.80
  6. Step 6: Final answer
    x = 189,050.60

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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.