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Finding the Fourth Proportional to 92,246.40, 138,350.70 and 25,669.80

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Solution

The fourth proportional to 92,246.40, 138,350.70 and 25,669.80 is: 38,499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,246.40 : 138,350.70 = 25,669.80 : x
  2. Step 2: Convert to fraction form
    92,246.40/138,350.70 = 25,669.80/x
  3. Step 3: Cross multiply
    92,246.40x = 138,350.70 × 25,669.80
  4. Step 4: Simplify right side
    92,246.40x = 3,551,434,798.86
  5. Step 5: Solve for x
    x = 3,551,434,798.86/92,246.40
  6. Step 6: Final answer
    x = 38,499.44

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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.