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Finding the Fourth Proportional to 284,622.08, 426,932.66 and 74,260.01

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Solution

The fourth proportional to 284,622.08, 426,932.66 and 74,260.01 is: 111,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,622.08 : 426,932.66 = 74,260.01 : x
  2. Step 2: Convert to fraction form
    284,622.08/426,932.66 = 74,260.01/x
  3. Step 3: Cross multiply
    284,622.08x = 426,932.66 × 74,260.01
  4. Step 4: Simplify right side
    284,622.08x = 31,704,024,853.91
  5. Step 5: Solve for x
    x = 31,704,024,853.91/284,622.08
  6. Step 6: Final answer
    x = 111,389.90

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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.