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Finding the Fourth Proportional to 75,645.77, 113,484.90 and 37,715.69

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Solution

The fourth proportional to 75,645.77, 113,484.90 and 37,715.69 is: 56,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,645.77 : 113,484.90 = 37,715.69 : x
  2. Step 2: Convert to fraction form
    75,645.77/113,484.90 = 37,715.69/x
  3. Step 3: Cross multiply
    75,645.77x = 113,484.90 × 37,715.69
  4. Step 4: Simplify right side
    75,645.77x = 4,280,160,740.66
  5. Step 5: Solve for x
    x = 4,280,160,740.66/75,645.77
  6. Step 6: Final answer
    x = 56,581.63

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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.