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Finding the Fourth Proportional to 437,581.44, 656,369.28 and 122,040

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Solution

The fourth proportional to 437,581.44, 656,369.28 and 122,040 is: 183,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,581.44 : 656,369.28 = 122,040 : x
  2. Step 2: Convert to fraction form
    437,581.44/656,369.28 = 122,040/x
  3. Step 3: Cross multiply
    437,581.44x = 656,369.28 × 122,040
  4. Step 4: Simplify right side
    437,581.44x = 80,103,306,931.20
  5. Step 5: Solve for x
    x = 80,103,306,931.20/437,581.44
  6. Step 6: Final answer
    x = 183,059.20

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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.