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Finding the Fourth Proportional to 75,015.63, 112,578.75 and 35,572.86

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Solution

The fourth proportional to 75,015.63, 112,578.75 and 35,572.86 is: 53,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015.63 : 112,578.75 = 35,572.86 : x
  2. Step 2: Convert to fraction form
    75,015.63/112,578.75 = 35,572.86/x
  3. Step 3: Cross multiply
    75,015.63x = 112,578.75 × 35,572.86
  4. Step 4: Simplify right side
    75,015.63x = 4,004,748,112.73
  5. Step 5: Solve for x
    x = 4,004,748,112.73/75,015.63
  6. Step 6: Final answer
    x = 53,385.52

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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.