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Finding the Fourth Proportional to 92,004.80, 138,007.20 and 32,907.20

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Solution

The fourth proportional to 92,004.80, 138,007.20 and 32,907.20 is: 49,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,004.80 : 138,007.20 = 32,907.20 : x
  2. Step 2: Convert to fraction form
    92,004.80/138,007.20 = 32,907.20/x
  3. Step 3: Cross multiply
    92,004.80x = 138,007.20 × 32,907.20
  4. Step 4: Simplify right side
    92,004.80x = 4,541,430,531.84
  5. Step 5: Solve for x
    x = 4,541,430,531.84/92,004.80
  6. Step 6: Final answer
    x = 49,360.80

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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.