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Finding the Fourth Proportional to 74,916.40, 112,358.40 and 32,796.40

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Solution

The fourth proportional to 74,916.40, 112,358.40 and 32,796.40 is: 49,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.40 : 112,358.40 = 32,796.40 : x
  2. Step 2: Convert to fraction form
    74,916.40/112,358.40 = 32,796.40/x
  3. Step 3: Cross multiply
    74,916.40x = 112,358.40 × 32,796.40
  4. Step 4: Simplify right side
    74,916.40x = 3,684,951,029.76
  5. Step 5: Solve for x
    x = 3,684,951,029.76/74,916.40
  6. Step 6: Final answer
    x = 49,187.51

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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.