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Finding the Fourth Proportional to 73,830.40, 101,884.80 and 40,295.68

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Solution

The fourth proportional to 73,830.40, 101,884.80 and 40,295.68 is: 55,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,830.40 : 101,884.80 = 40,295.68 : x
  2. Step 2: Convert to fraction form
    73,830.40/101,884.80 = 40,295.68/x
  3. Step 3: Cross multiply
    73,830.40x = 101,884.80 × 40,295.68
  4. Step 4: Simplify right side
    73,830.40x = 4,105,517,297.66
  5. Step 5: Solve for x
    x = 4,105,517,297.66/73,830.40
  6. Step 6: Final answer
    x = 55,607.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.