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Finding the Fourth Proportional to 74,551.89, 102,884.07 and 42,726.89

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Solution

The fourth proportional to 74,551.89, 102,884.07 and 42,726.89 is: 58,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,551.89 : 102,884.07 = 42,726.89 : x
  2. Step 2: Convert to fraction form
    74,551.89/102,884.07 = 42,726.89/x
  3. Step 3: Cross multiply
    74,551.89x = 102,884.07 × 42,726.89
  4. Step 4: Simplify right side
    74,551.89x = 4,395,916,759.08
  5. Step 5: Solve for x
    x = 4,395,916,759.08/74,551.89
  6. Step 6: Final answer
    x = 58,964.52

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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.