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Finding the Fourth Proportional to 93,812.68, 140,733.42 and 31,468.60

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Solution

The fourth proportional to 93,812.68, 140,733.42 and 31,468.60 is: 47,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,812.68 : 140,733.42 = 31,468.60 : x
  2. Step 2: Convert to fraction form
    93,812.68/140,733.42 = 31,468.60/x
  3. Step 3: Cross multiply
    93,812.68x = 140,733.42 × 31,468.60
  4. Step 4: Simplify right side
    93,812.68x = 4,428,683,700.61
  5. Step 5: Solve for x
    x = 4,428,683,700.61/93,812.68
  6. Step 6: Final answer
    x = 47,207.73

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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.