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Finding the Fourth Proportional to 93,706.24, 140,605.53 and 43,789.78

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Solution

The fourth proportional to 93,706.24, 140,605.53 and 43,789.78 is: 65,706.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,706.24 : 140,605.53 = 43,789.78 : x
  2. Step 2: Convert to fraction form
    93,706.24/140,605.53 = 43,789.78/x
  3. Step 3: Cross multiply
    93,706.24x = 140,605.53 × 43,789.78
  4. Step 4: Simplify right side
    93,706.24x = 6,157,085,225.48
  5. Step 5: Solve for x
    x = 6,157,085,225.48/93,706.24
  6. Step 6: Final answer
    x = 65,706.25

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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.