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Finding the Fourth Proportional to 93,390.57, 140,002.64 and 34,212.40

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Solution

The fourth proportional to 93,390.57, 140,002.64 and 34,212.40 is: 51,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.57 : 140,002.64 = 34,212.40 : x
  2. Step 2: Convert to fraction form
    93,390.57/140,002.64 = 34,212.40/x
  3. Step 3: Cross multiply
    93,390.57x = 140,002.64 × 34,212.40
  4. Step 4: Simplify right side
    93,390.57x = 4,789,825,449.66
  5. Step 5: Solve for x
    x = 4,789,825,449.66/93,390.57
  6. Step 6: Final answer
    x = 51,288.11

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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.