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Finding the Fourth Proportional to 99,470.42, 137,266 and 59,174.94

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Solution

The fourth proportional to 99,470.42, 137,266 and 59,174.94 is: 81,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,470.42 : 137,266 = 59,174.94 : x
  2. Step 2: Convert to fraction form
    99,470.42/137,266 = 59,174.94/x
  3. Step 3: Cross multiply
    99,470.42x = 137,266 × 59,174.94
  4. Step 4: Simplify right side
    99,470.42x = 8,122,707,314.04
  5. Step 5: Solve for x
    x = 8,122,707,314.04/99,470.42
  6. Step 6: Final answer
    x = 81,659.53

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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.