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Finding the Fourth Proportional to 93,254.28, 139,781.82 and 53,187

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Solution

The fourth proportional to 93,254.28, 139,781.82 and 53,187 is: 79,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,254.28 : 139,781.82 = 53,187 : x
  2. Step 2: Convert to fraction form
    93,254.28/139,781.82 = 53,187/x
  3. Step 3: Cross multiply
    93,254.28x = 139,781.82 × 53,187
  4. Step 4: Simplify right side
    93,254.28x = 7,434,575,660.34
  5. Step 5: Solve for x
    x = 7,434,575,660.34/93,254.28
  6. Step 6: Final answer
    x = 79,723.69

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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.