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Finding the Fourth Proportional to 99,464.91, 137,264.67 and 54,145.91

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Solution

The fourth proportional to 99,464.91, 137,264.67 and 54,145.91 is: 74,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,464.91 : 137,264.67 = 54,145.91 : x
  2. Step 2: Convert to fraction form
    99,464.91/137,264.67 = 54,145.91/x
  3. Step 3: Cross multiply
    99,464.91x = 137,264.67 × 54,145.91
  4. Step 4: Simplify right side
    99,464.91x = 7,432,320,468.00
  5. Step 5: Solve for x
    x = 7,432,320,468.00/99,464.91
  6. Step 6: Final answer
    x = 74,723.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.