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Finding the Fourth Proportional to 93,578.96, 140,380.32 and 42,965.66

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Solution

The fourth proportional to 93,578.96, 140,380.32 and 42,965.66 is: 64,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,578.96 : 140,380.32 = 42,965.66 : x
  2. Step 2: Convert to fraction form
    93,578.96/140,380.32 = 42,965.66/x
  3. Step 3: Cross multiply
    93,578.96x = 140,380.32 × 42,965.66
  4. Step 4: Simplify right side
    93,578.96x = 6,031,533,099.81
  5. Step 5: Solve for x
    x = 6,031,533,099.81/93,578.96
  6. Step 6: Final answer
    x = 64,453.94

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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.