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Finding the Fourth Proportional to 92,507.80, 138,762.38 and 22,387.11

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Solution

The fourth proportional to 92,507.80, 138,762.38 and 22,387.11 is: 33,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.80 : 138,762.38 = 22,387.11 : x
  2. Step 2: Convert to fraction form
    92,507.80/138,762.38 = 22,387.11/x
  3. Step 3: Cross multiply
    92,507.80x = 138,762.38 × 22,387.11
  4. Step 4: Simplify right side
    92,507.80x = 3,106,488,664.92
  5. Step 5: Solve for x
    x = 3,106,488,664.92/92,507.80
  6. Step 6: Final answer
    x = 33,580.83

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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.