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Finding the Fourth Proportional to 404,807.35, 607,211.03 and 124,288.15

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Solution

The fourth proportional to 404,807.35, 607,211.03 and 124,288.15 is: 186,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,807.35 : 607,211.03 = 124,288.15 : x
  2. Step 2: Convert to fraction form
    404,807.35/607,211.03 = 124,288.15/x
  3. Step 3: Cross multiply
    404,807.35x = 607,211.03 × 124,288.15
  4. Step 4: Simplify right side
    404,807.35x = 75,469,134,956.85
  5. Step 5: Solve for x
    x = 75,469,134,956.85/404,807.35
  6. Step 6: Final answer
    x = 186,432.23

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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.