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Finding the Fourth Proportional to 93,957.30, 129,660.48 and 51,516

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Solution

The fourth proportional to 93,957.30, 129,660.48 and 51,516 is: 71,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,957.30 : 129,660.48 = 51,516 : x
  2. Step 2: Convert to fraction form
    93,957.30/129,660.48 = 51,516/x
  3. Step 3: Cross multiply
    93,957.30x = 129,660.48 × 51,516
  4. Step 4: Simplify right side
    93,957.30x = 6,679,589,287.68
  5. Step 5: Solve for x
    x = 6,679,589,287.68/93,957.30
  6. Step 6: Final answer
    x = 71,091.75

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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.