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Finding the Fourth Proportional to 93,702.72, 140,554.08 and 27,142.87

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Solution

The fourth proportional to 93,702.72, 140,554.08 and 27,142.87 is: 40,714.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,702.72 : 140,554.08 = 27,142.87 : x
  2. Step 2: Convert to fraction form
    93,702.72/140,554.08 = 27,142.87/x
  3. Step 3: Cross multiply
    93,702.72x = 140,554.08 × 27,142.87
  4. Step 4: Simplify right side
    93,702.72x = 3,815,041,121.41
  5. Step 5: Solve for x
    x = 3,815,041,121.41/93,702.72
  6. Step 6: Final answer
    x = 40,714.31

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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.