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Finding the Fourth Proportional to 74,804.52, 112,141.15 and 30,468.57

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Solution

The fourth proportional to 74,804.52, 112,141.15 and 30,468.57 is: 45,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,804.52 : 112,141.15 = 30,468.57 : x
  2. Step 2: Convert to fraction form
    74,804.52/112,141.15 = 30,468.57/x
  3. Step 3: Cross multiply
    74,804.52x = 112,141.15 × 30,468.57
  4. Step 4: Simplify right side
    74,804.52x = 3,416,780,478.66
  5. Step 5: Solve for x
    x = 3,416,780,478.66/74,804.52
  6. Step 6: Final answer
    x = 45,676.12

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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.