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Finding the Fourth Proportional to 114,279.79, 171,530.25 and 55,157.08

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Solution

The fourth proportional to 114,279.79, 171,530.25 and 55,157.08 is: 82,788.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,279.79 : 171,530.25 = 55,157.08 : x
  2. Step 2: Convert to fraction form
    114,279.79/171,530.25 = 55,157.08/x
  3. Step 3: Cross multiply
    114,279.79x = 171,530.25 × 55,157.08
  4. Step 4: Simplify right side
    114,279.79x = 9,461,107,721.67
  5. Step 5: Solve for x
    x = 9,461,107,721.67/114,279.79
  6. Step 6: Final answer
    x = 82,788.98

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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.