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Finding the Fourth Proportional to 117,679.76, 176,597.40 and 55,355.12

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Solution

The fourth proportional to 117,679.76, 176,597.40 and 55,355.12 is: 83,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,679.76 : 176,597.40 = 55,355.12 : x
  2. Step 2: Convert to fraction form
    117,679.76/176,597.40 = 55,355.12/x
  3. Step 3: Cross multiply
    117,679.76x = 176,597.40 × 55,355.12
  4. Step 4: Simplify right side
    117,679.76x = 9,775,570,268.69
  5. Step 5: Solve for x
    x = 9,775,570,268.69/117,679.76
  6. Step 6: Final answer
    x = 83,069.26

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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.