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Finding the Fourth Proportional to 153,262.94, 211,471.16 and 89,588.42

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Solution

The fourth proportional to 153,262.94, 211,471.16 and 89,588.42 is: 123,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,262.94 : 211,471.16 = 89,588.42 : x
  2. Step 2: Convert to fraction form
    153,262.94/211,471.16 = 89,588.42/x
  3. Step 3: Cross multiply
    153,262.94x = 211,471.16 × 89,588.42
  4. Step 4: Simplify right side
    153,262.94x = 18,945,367,099.97
  5. Step 5: Solve for x
    x = 18,945,367,099.97/153,262.94
  6. Step 6: Final answer
    x = 123,613.49

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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.