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Finding the Fourth Proportional to 74,904.24, 103,269.24 and 57,695.88

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Solution

The fourth proportional to 74,904.24, 103,269.24 and 57,695.88 is: 79,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,904.24 : 103,269.24 = 57,695.88 : x
  2. Step 2: Convert to fraction form
    74,904.24/103,269.24 = 57,695.88/x
  3. Step 3: Cross multiply
    74,904.24x = 103,269.24 × 57,695.88
  4. Step 4: Simplify right side
    74,904.24x = 5,958,209,678.73
  5. Step 5: Solve for x
    x = 5,958,209,678.73/74,904.24
  6. Step 6: Final answer
    x = 79,544.36

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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.