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Finding the Fourth Proportional to 117,955.85, 176,980.55 and 43,080.86

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Solution

The fourth proportional to 117,955.85, 176,980.55 and 43,080.86 is: 64,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,955.85 : 176,980.55 = 43,080.86 : x
  2. Step 2: Convert to fraction form
    117,955.85/176,980.55 = 43,080.86/x
  3. Step 3: Cross multiply
    117,955.85x = 176,980.55 × 43,080.86
  4. Step 4: Simplify right side
    117,955.85x = 7,624,474,524.32
  5. Step 5: Solve for x
    x = 7,624,474,524.32/117,955.85
  6. Step 6: Final answer
    x = 64,638.38

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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.