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Finding the Fourth Proportional to 73,567.90, 110,352.86 and 20,977.38

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Solution

The fourth proportional to 73,567.90, 110,352.86 and 20,977.38 is: 31,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,567.90 : 110,352.86 = 20,977.38 : x
  2. Step 2: Convert to fraction form
    73,567.90/110,352.86 = 20,977.38/x
  3. Step 3: Cross multiply
    73,567.90x = 110,352.86 × 20,977.38
  4. Step 4: Simplify right side
    73,567.90x = 2,314,913,878.31
  5. Step 5: Solve for x
    x = 2,314,913,878.31/73,567.90
  6. Step 6: Final answer
    x = 31,466.36

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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.