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Finding the Fourth Proportional to 92,453.60, 138,329.40 and 61,349.60

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Solution

The fourth proportional to 92,453.60, 138,329.40 and 61,349.60 is: 91,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,453.60 : 138,329.40 = 61,349.60 : x
  2. Step 2: Convert to fraction form
    92,453.60/138,329.40 = 61,349.60/x
  3. Step 3: Cross multiply
    92,453.60x = 138,329.40 × 61,349.60
  4. Step 4: Simplify right side
    92,453.60x = 8,486,453,358.24
  5. Step 5: Solve for x
    x = 8,486,453,358.24/92,453.60
  6. Step 6: Final answer
    x = 91,791.49

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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.