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Finding the Fourth Proportional to 61,907.13, 92,849.72 and 28,165.31

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Solution

The fourth proportional to 61,907.13, 92,849.72 and 28,165.31 is: 42,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907.13 : 92,849.72 = 28,165.31 : x
  2. Step 2: Convert to fraction form
    61,907.13/92,849.72 = 28,165.31/x
  3. Step 3: Cross multiply
    61,907.13x = 92,849.72 × 28,165.31
  4. Step 4: Simplify right side
    61,907.13x = 2,615,141,147.21
  5. Step 5: Solve for x
    x = 2,615,141,147.21/61,907.13
  6. Step 6: Final answer
    x = 42,242.97

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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.