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Finding the Fourth Proportional to 111,779.64, 167,686.13 and 36,907.70

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Solution

The fourth proportional to 111,779.64, 167,686.13 and 36,907.70 is: 55,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,779.64 : 167,686.13 = 36,907.70 : x
  2. Step 2: Convert to fraction form
    111,779.64/167,686.13 = 36,907.70/x
  3. Step 3: Cross multiply
    111,779.64x = 167,686.13 × 36,907.70
  4. Step 4: Simplify right side
    111,779.64x = 6,188,908,357.23
  5. Step 5: Solve for x
    x = 6,188,908,357.23/111,779.64
  6. Step 6: Final answer
    x = 55,367.04

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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.