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Finding the Fourth Proportional to 93,612.97, 140,419.46 and 31,283.47

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Solution

The fourth proportional to 93,612.97, 140,419.46 and 31,283.47 is: 46,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,612.97 : 140,419.46 = 31,283.47 : x
  2. Step 2: Convert to fraction form
    93,612.97/140,419.46 = 31,283.47/x
  3. Step 3: Cross multiply
    93,612.97x = 140,419.46 × 31,283.47
  4. Step 4: Simplify right side
    93,612.97x = 4,392,807,964.33
  5. Step 5: Solve for x
    x = 4,392,807,964.33/93,612.97
  6. Step 6: Final answer
    x = 46,925.21

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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.