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Finding the Fourth Proportional to 93,971.04, 129,717.36 and 56,238

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Solution

The fourth proportional to 93,971.04, 129,717.36 and 56,238 is: 77,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,971.04 : 129,717.36 = 56,238 : x
  2. Step 2: Convert to fraction form
    93,971.04/129,717.36 = 56,238/x
  3. Step 3: Cross multiply
    93,971.04x = 129,717.36 × 56,238
  4. Step 4: Simplify right side
    93,971.04x = 7,295,044,891.68
  5. Step 5: Solve for x
    x = 7,295,044,891.68/93,971.04
  6. Step 6: Final answer
    x = 77,630.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.