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Finding the Fourth Proportional to 93,686.80, 140,552.72 and 27,131.53

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Solution

The fourth proportional to 93,686.80, 140,552.72 and 27,131.53 is: 40,703.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,686.80 : 140,552.72 = 27,131.53 : x
  2. Step 2: Convert to fraction form
    93,686.80/140,552.72 = 27,131.53/x
  3. Step 3: Cross multiply
    93,686.80x = 140,552.72 × 27,131.53
  4. Step 4: Simplify right side
    93,686.80x = 3,813,410,339.26
  5. Step 5: Solve for x
    x = 3,813,410,339.26/93,686.80
  6. Step 6: Final answer
    x = 40,703.82

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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.