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Finding the Fourth Proportional to 93,946.40, 129,654.20 and 51,513.20

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Solution

The fourth proportional to 93,946.40, 129,654.20 and 51,513.20 is: 71,092.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,946.40 : 129,654.20 = 51,513.20 : x
  2. Step 2: Convert to fraction form
    93,946.40/129,654.20 = 51,513.20/x
  3. Step 3: Cross multiply
    93,946.40x = 129,654.20 × 51,513.20
  4. Step 4: Simplify right side
    93,946.40x = 6,678,902,735.44
  5. Step 5: Solve for x
    x = 6,678,902,735.44/93,946.40
  6. Step 6: Final answer
    x = 71,092.69

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1.5x scale

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.