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Finding the Fourth Proportional to 74,459.52, 102,634.29 and 61,007.04

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Solution

The fourth proportional to 74,459.52, 102,634.29 and 61,007.04 is: 84,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459.52 : 102,634.29 = 61,007.04 : x
  2. Step 2: Convert to fraction form
    74,459.52/102,634.29 = 61,007.04/x
  3. Step 3: Cross multiply
    74,459.52x = 102,634.29 × 61,007.04
  4. Step 4: Simplify right side
    74,459.52x = 6,261,414,235.40
  5. Step 5: Solve for x
    x = 6,261,414,235.40/74,459.52
  6. Step 6: Final answer
    x = 84,091.52

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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.