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Finding the Fourth Proportional to 93,746.70, 129,333.42 and 57,874.50

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Solution

The fourth proportional to 93,746.70, 129,333.42 and 57,874.50 is: 79,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,746.70 : 129,333.42 = 57,874.50 : x
  2. Step 2: Convert to fraction form
    93,746.70/129,333.42 = 57,874.50/x
  3. Step 3: Cross multiply
    93,746.70x = 129,333.42 × 57,874.50
  4. Step 4: Simplify right side
    93,746.70x = 7,485,107,015.79
  5. Step 5: Solve for x
    x = 7,485,107,015.79/93,746.70
  6. Step 6: Final answer
    x = 79,843.95

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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.