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Finding the Fourth Proportional to 117,779.33, 176,601.84 and 80,384.67

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Solution

The fourth proportional to 117,779.33, 176,601.84 and 80,384.67 is: 120,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,779.33 : 176,601.84 = 80,384.67 : x
  2. Step 2: Convert to fraction form
    117,779.33/176,601.84 = 80,384.67/x
  3. Step 3: Cross multiply
    117,779.33x = 176,601.84 × 80,384.67
  4. Step 4: Simplify right side
    117,779.33x = 14,196,080,629.79
  5. Step 5: Solve for x
    x = 14,196,080,629.79/117,779.33
  6. Step 6: Final answer
    x = 120,531.18

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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.