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Finding the Fourth Proportional to 111,975.82, 167,881.38 and 52,779.40

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Solution

The fourth proportional to 111,975.82, 167,881.38 and 52,779.40 is: 79,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.82 : 167,881.38 = 52,779.40 : x
  2. Step 2: Convert to fraction form
    111,975.82/167,881.38 = 52,779.40/x
  3. Step 3: Cross multiply
    111,975.82x = 167,881.38 × 52,779.40
  4. Step 4: Simplify right side
    111,975.82x = 8,860,678,507.57
  5. Step 5: Solve for x
    x = 8,860,678,507.57/111,975.82
  6. Step 6: Final answer
    x = 79,130.28

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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.