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Finding the Fourth Proportional to 93,262.89, 128,702.68 and 50,821.41

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Solution

The fourth proportional to 93,262.89, 128,702.68 and 50,821.41 is: 70,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,262.89 : 128,702.68 = 50,821.41 : x
  2. Step 2: Convert to fraction form
    93,262.89/128,702.68 = 50,821.41/x
  3. Step 3: Cross multiply
    93,262.89x = 128,702.68 × 50,821.41
  4. Step 4: Simplify right side
    93,262.89x = 6,540,851,668.38
  5. Step 5: Solve for x
    x = 6,540,851,668.38/93,262.89
  6. Step 6: Final answer
    x = 70,133.49

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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.