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Finding the Fourth Proportional to 93,859.61, 140,871.42 and 54,362.39

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Solution

The fourth proportional to 93,859.61, 140,871.42 and 54,362.39 is: 81,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,859.61 : 140,871.42 = 54,362.39 : x
  2. Step 2: Convert to fraction form
    93,859.61/140,871.42 = 54,362.39/x
  3. Step 3: Cross multiply
    93,859.61x = 140,871.42 × 54,362.39
  4. Step 4: Simplify right side
    93,859.61x = 7,658,106,369.54
  5. Step 5: Solve for x
    x = 7,658,106,369.54/93,859.61
  6. Step 6: Final answer
    x = 81,591.08

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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.